diff --git a/01-introduction.html b/01-introduction.html
index 03a1d56..8c7ae70 100644
--- a/01-introduction.html
+++ b/01-introduction.html
@@ -428,7 +428,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/02-installing-docker.html b/02-installing-docker.html
index 004285a..c625231 100644
--- a/02-installing-docker.html
+++ b/02-installing-docker.html
@@ -365,7 +365,7 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 </button>
 </div>
 </nav><div id="nav-tabContent-1" class="tab-content">
-<div id="nav-tabpanel-1-1" class="tab-pane show active" role="tabpanel" aria-labelledby="nav-tab-1-1">
+<div id="nav-tabpanel-1-1" class="tab-pane show active" aria-labelledby="nav-tab-1-1" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> following the WSL2 instructions or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the Linux instructions (Ubuntu/debian).</p>
@@ -373,11 +373,11 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 <a href="https://devblogs.microsoft.com/commandline/systemd-support-is-now-available-in-wsl/" class="external-link">activate
 <code>systemd</code></a> on your WSL2.</p>
 </div>
-<div id="nav-tabpanel-1-2" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-2">
+<div id="nav-tabpanel-1-2" class="tab-pane" aria-labelledby="nav-tab-1-2" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a></p>
 </div>
-<div id="nav-tabpanel-1-3" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-3">
+<div id="nav-tabpanel-1-3" class="tab-pane" aria-labelledby="nav-tab-1-3" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the instruction for your Linux flavour.</p>
@@ -633,7 +633,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/03-docker-for-cms-opendata.html b/03-docker-for-cms-opendata.html
index f5a414b..e9c535d 100644
--- a/03-docker-for-cms-opendata.html
+++ b/03-docker-for-cms-opendata.html
@@ -474,7 +474,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Windows WSL, Mac and Linux without X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -523,7 +523,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Linux using X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb14">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -581,7 +581,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Open the editor in your host system, create a file
 <code>example.txt</code> and save it to the shared working area, either
@@ -630,7 +630,7 @@ <h3 class="callout-title">Challenge 2<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Restart the python container with</p>
 <div class="codewrapper sourceCode" id="cb23">
@@ -703,7 +703,7 @@ <h3 class="callout-title">Challenge 3<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Restart the root container with</p>
 <div class="codewrapper sourceCode" id="cb28">
@@ -810,7 +810,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/04-docker-for-mc-generators-rivet.html b/04-docker-for-mc-generators-rivet.html
index b39d0fe..686bc36 100644
--- a/04-docker-for-mc-generators-rivet.html
+++ b/04-docker-for-mc-generators-rivet.html
@@ -695,7 +695,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/404.html b/404.html
index ce78286..2a2bba7 100644
--- a/404.html
+++ b/404.html
@@ -323,7 +323,7 @@ <h1>Page not found</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 5f3dba2..86471d5 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -348,7 +348,7 @@ <h1>Contributor Code of Conduct</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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 		</footer></div> <!-- / div.container -->
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diff --git a/LICENSE.html b/LICENSE.html
index b6767fc..0ce339f 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -399,7 +399,7 @@ <h1>Licenses</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/aio.html b/aio.html
index 0f10115..6a07a1a 100644
--- a/aio.html
+++ b/aio.html
@@ -495,7 +495,7 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 </button>
 </div>
 </nav><div id="nav-tabContent-1" class="tab-content">
-<div id="nav-tabpanel-1-1" class="tab-pane show active" role="tabpanel" aria-labelledby="nav-tab-1-1">
+<div id="nav-tabpanel-1-1" class="tab-pane show active" aria-labelledby="nav-tab-1-1" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> following the WSL2 instructions or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the Linux instructions (Ubuntu/debian).</p>
@@ -503,11 +503,11 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 <a href="https://devblogs.microsoft.com/commandline/systemd-support-is-now-available-in-wsl/" class="external-link">activate
 <code>systemd</code></a> on your WSL2.</p>
 </div>
-<div id="nav-tabpanel-1-2" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-2">
+<div id="nav-tabpanel-1-2" class="tab-pane" aria-labelledby="nav-tab-1-2" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a></p>
 </div>
-<div id="nav-tabpanel-1-3" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-3">
+<div id="nav-tabpanel-1-3" class="tab-pane" aria-labelledby="nav-tab-1-3" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the instruction for your Linux flavour.</p>
@@ -919,7 +919,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Windows WSL, Mac and Linux without X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -968,7 +968,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Linux using X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb14">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1027,7 +1027,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Open the editor in your host system, create a file
 <code>example.txt</code> and save it to the shared working area, either
@@ -1076,7 +1076,7 @@ <h3 class="callout-title">Challenge 2<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Restart the python container with</p>
 <div class="codewrapper sourceCode" id="cb23">
@@ -1149,7 +1149,7 @@ <h3 class="callout-title">Challenge 3<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Restart the root container with</p>
 <div class="codewrapper sourceCode" id="cb28">
@@ -1611,7 +1611,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/images.html b/images.html
index c781cc5..35d6d7a 100644
--- a/images.html
+++ b/images.html
@@ -362,7 +362,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/index.html b/index.html
index 63a0f05..9901638 100644
--- a/index.html
+++ b/index.html
@@ -293,13 +293,13 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 
 <p>Welcome to learn how to use Docker containers as a working
 environment during the Midsummer QCD school. Containers will be used
-during the hands-on lessons on MC generators, maching learning and CMS
-open data.</p>
+during the hands-on lessons on Monte Carlo generators, maching learning
+and CMS open data.</p>
 <p>In this lesson, you will be asked to download the containers that
-will facilitate your work for the ML lesson and for CMS open data, and
-learn the basics of their use. During the school, you might need to
-download other containers, but once you worked through this lesson, you
-will find it easy.</p>
+will facilitate your work for the Monte Carlo generator and ML lessons
+and for CMS open data, and learn the basics of their use. During the
+school, you might need to download other containers, but once you worked
+through this lesson, you will find it easy.</p>
 <p>This is not a full introduction to Docker, however, we do take time
 to explain some key concepts that should make your experience a smooth
 one.</p>
@@ -343,7 +343,7 @@ <h3 class="accordion-header" id="headingSpoiler1">
   Windows
   </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <p>Activate <a href="https://learn.microsoft.com/en-us/windows/wsl/install#install-wsl-command" class="external-link">WSL2</a>
 and use the Ubuntu terminal.</p>
@@ -359,7 +359,7 @@ <h3 class="accordion-header" id="headingSpoiler2">
   MacOS
   </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <p>Use Terminal.app</p>
 </div>
@@ -374,7 +374,7 @@ <h3 class="accordion-header" id="headingSpoiler3">
   Linux
   </h3>
 </button>
-<div id="collapseSpoiler3" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler3" aria-labelledby="headingSpoiler3">
+<div id="collapseSpoiler3" class="accordion-collapse collapse" aria-labelledby="headingSpoiler3" data-bs-parent="#accordionSpoiler3">
 <div class="accordion-body">
 <p>Use Terminal</p>
 </div>
@@ -412,7 +412,7 @@ <h3 class="accordion-header" id="headingSpoiler3">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor-notes.html b/instructor-notes.html
index 69c8f5e..d8b88b2 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -366,7 +366,7 @@ <h1>Instructor Notes</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/01-introduction.html b/instructor/01-introduction.html
index ff97667..0634e1c 100644
--- a/instructor/01-introduction.html
+++ b/instructor/01-introduction.html
@@ -430,7 +430,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/02-installing-docker.html b/instructor/02-installing-docker.html
index 2a200dd..e442eeb 100644
--- a/instructor/02-installing-docker.html
+++ b/instructor/02-installing-docker.html
@@ -367,7 +367,7 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 </button>
 </div>
 </nav><div id="nav-tabContent-1" class="tab-content">
-<div id="nav-tabpanel-1-1" class="tab-pane show active" role="tabpanel" aria-labelledby="nav-tab-1-1">
+<div id="nav-tabpanel-1-1" class="tab-pane show active" aria-labelledby="nav-tab-1-1" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> following the WSL2 instructions or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the Linux instructions (Ubuntu/debian).</p>
@@ -375,11 +375,11 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 <a href="https://devblogs.microsoft.com/commandline/systemd-support-is-now-available-in-wsl/" class="external-link">activate
 <code>systemd</code></a> on your WSL2.</p>
 </div>
-<div id="nav-tabpanel-1-2" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-2">
+<div id="nav-tabpanel-1-2" class="tab-pane" aria-labelledby="nav-tab-1-2" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a></p>
 </div>
-<div id="nav-tabpanel-1-3" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-3">
+<div id="nav-tabpanel-1-3" class="tab-pane" aria-labelledby="nav-tab-1-3" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the instruction for your Linux flavour.</p>
@@ -635,7 +635,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/03-docker-for-cms-opendata.html b/instructor/03-docker-for-cms-opendata.html
index bba6f0e..13e62bc 100644
--- a/instructor/03-docker-for-cms-opendata.html
+++ b/instructor/03-docker-for-cms-opendata.html
@@ -476,7 +476,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Windows WSL, Mac and Linux without X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -525,7 +525,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Linux using X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb14">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -583,7 +583,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Open the editor in your host system, create a file
 <code>example.txt</code> and save it to the shared working area, either
@@ -632,7 +632,7 @@ <h3 class="callout-title">Challenge 2<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Restart the python container with</p>
 <div class="codewrapper sourceCode" id="cb23">
@@ -705,7 +705,7 @@ <h3 class="callout-title">Challenge 3<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Restart the root container with</p>
 <div class="codewrapper sourceCode" id="cb28">
@@ -812,7 +812,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/04-docker-for-mc-generators-rivet.html b/instructor/04-docker-for-mc-generators-rivet.html
index 945db5a..1e8a1a2 100644
--- a/instructor/04-docker-for-mc-generators-rivet.html
+++ b/instructor/04-docker-for-mc-generators-rivet.html
@@ -697,7 +697,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/404.html b/instructor/404.html
index 52eb8e3..ff3a5d3 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -323,7 +323,7 @@ <h1>Page not found</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
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-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 4262c79..3053aa9 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -350,7 +350,7 @@ <h1>Contributor Code of Conduct</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 9e3c270..1b607e9 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -401,7 +401,7 @@ <h1>Licenses</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/aio.html b/instructor/aio.html
index 8d11371..5f55cc0 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -499,7 +499,7 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 </button>
 </div>
 </nav><div id="nav-tabContent-1" class="tab-content">
-<div id="nav-tabpanel-1-1" class="tab-pane show active" role="tabpanel" aria-labelledby="nav-tab-1-1">
+<div id="nav-tabpanel-1-1" class="tab-pane show active" aria-labelledby="nav-tab-1-1" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> following the WSL2 instructions or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the Linux instructions (Ubuntu/debian).</p>
@@ -507,11 +507,11 @@ <h3 class="tab-header" id="nav-tab-heading-1-3">
 <a href="https://devblogs.microsoft.com/commandline/systemd-support-is-now-available-in-wsl/" class="external-link">activate
 <code>systemd</code></a> on your WSL2.</p>
 </div>
-<div id="nav-tabpanel-1-2" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-2">
+<div id="nav-tabpanel-1-2" class="tab-pane" aria-labelledby="nav-tab-1-2" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a></p>
 </div>
-<div id="nav-tabpanel-1-3" class="tab-pane" role="tabpanel" aria-labelledby="nav-tab-1-3">
+<div id="nav-tabpanel-1-3" class="tab-pane" aria-labelledby="nav-tab-1-3" role="tabpanel">
 <p>Install <a href="https://docs.docker.com/get-docker/" class="external-link">Docker
 Destop</a> or <a href="https://docs.docker.com/engine/install/" class="external-link">docker-engine</a>
 following the instruction for your Linux flavour.</p>
@@ -924,7 +924,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
   <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Windows WSL, Mac and Linux without X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -973,7 +973,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler2" aria-expanded="false" aria-controls="collapseSpoiler2">
   <h3 class="accordion-header" id="headingSpoiler2">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Linux using X11-forwarding </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb14">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1032,7 +1032,7 @@ <h3 class="callout-title">Challenge 1<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Open the editor in your host system, create a file
 <code>example.txt</code> and save it to the shared working area, either
@@ -1081,7 +1081,7 @@ <h3 class="callout-title">Challenge 2<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Restart the python container with</p>
 <div class="codewrapper sourceCode" id="cb23">
@@ -1154,7 +1154,7 @@ <h3 class="callout-title">Challenge 3<a class="anchor" aria-label="anchor" href=
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Restart the root container with</p>
 <div class="codewrapper sourceCode" id="cb28">
@@ -1617,7 +1617,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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 		</footer>
 </div> <!-- / div.container -->
diff --git a/instructor/images.html b/instructor/images.html
index 9fbbc66..57476f7 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -364,7 +364,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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 		</footer>
 </div> <!-- / div.container -->
diff --git a/instructor/index.html b/instructor/index.html
index e419abb..14ab4d1 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -286,13 +286,13 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 
 <p>Welcome to learn how to use Docker containers as a working
 environment during the Midsummer QCD school. Containers will be used
-during the hands-on lessons on MC generators, maching learning and CMS
-open data.</p>
+during the hands-on lessons on Monte Carlo generators, maching learning
+and CMS open data.</p>
 <p>In this lesson, you will be asked to download the containers that
-will facilitate your work for the ML lesson and for CMS open data, and
-learn the basics of their use. During the school, you might need to
-download other containers, but once you worked through this lesson, you
-will find it easy.</p>
+will facilitate your work for the Monte Carlo generator and ML lessons
+and for CMS open data, and learn the basics of their use. During the
+school, you might need to download other containers, but once you worked
+through this lesson, you will find it easy.</p>
 <p>This is not a full introduction to Docker, however, we do take time
 to explain some key concepts that should make your experience a smooth
 one.</p>
@@ -390,7 +390,7 @@ <h3 class="accordion-header" id="headingSpoiler1">
   Windows
   </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
 <div class="accordion-body">
 <p>Activate <a href="https://learn.microsoft.com/en-us/windows/wsl/install#install-wsl-command" class="external-link">WSL2</a>
 and use the Ubuntu terminal.</p>
@@ -406,7 +406,7 @@ <h3 class="accordion-header" id="headingSpoiler2">
   MacOS
   </h3>
 </button>
-<div id="collapseSpoiler2" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler2" aria-labelledby="headingSpoiler2">
+<div id="collapseSpoiler2" class="accordion-collapse collapse" aria-labelledby="headingSpoiler2" data-bs-parent="#accordionSpoiler2">
 <div class="accordion-body">
 <p>Use Terminal.app</p>
 </div>
@@ -421,7 +421,7 @@ <h3 class="accordion-header" id="headingSpoiler3">
   Linux
   </h3>
 </button>
-<div id="collapseSpoiler3" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler3" aria-labelledby="headingSpoiler3">
+<div id="collapseSpoiler3" class="accordion-collapse collapse" aria-labelledby="headingSpoiler3" data-bs-parent="#accordionSpoiler3">
 <div class="accordion-body">
 <p>Use Terminal</p>
 </div>
@@ -459,7 +459,7 @@ <h3 class="accordion-header" id="headingSpoiler3">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 8f054d8..d273d9b 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -372,7 +372,7 @@ <h1>Instructor Notes</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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 </div> <!-- / div.container -->
diff --git a/instructor/key-points.html b/instructor/key-points.html
index 536f942..82f8fc1 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -394,7 +394,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/profiles.html b/instructor/profiles.html
index b45806b..3a8a3e0 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -306,7 +306,7 @@ <h1>Learner Profiles</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/instructor/reference.html b/instructor/reference.html
index 0cbf301..42083d8 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -346,7 +346,7 @@ <h1>Glossary</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/key-points.html b/key-points.html
index 53492b1..c0ffaa5 100644
--- a/key-points.html
+++ b/key-points.html
@@ -392,7 +392,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/md5sum.txt b/md5sum.txt
index cc8dd04..f803c0f 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -2,7 +2,7 @@
 "CODE_OF_CONDUCT.md" "c93c83c630db2fe2462240bf72552548" "site/built/CODE_OF_CONDUCT.md" "2022-08-05"
 "LICENSE.md" "b24ebbb41b14ca25cf6b8216dda83e5f" "site/built/LICENSE.md" "2023-04-07"
 "config.yaml" "ed94c661291d588788edbf3bd50c04d5" "site/built/config.yaml" "2024-06-25"
-"index.md" "612d52ba49bbc4b2b8986cdacf95477c" "site/built/index.md" "2024-06-19"
+"index.md" "b426fc5e57f19dd6a0ca01bd03a6da19" "site/built/index.md" "2024-06-25"
 "links.md" "8184cf4149eafbf03ce8da8ff0778c14" "site/built/links.md" "2022-04-22"
 "episodes/01-introduction.md" "38a555bb0932ffedc27c415904e74a75" "site/built/01-introduction.md" "2024-06-19"
 "episodes/02-installing-docker.md" "0dce77d464e3a4e60624d808582cf6af" "site/built/02-installing-docker.md" "2024-06-19"
diff --git a/pkgdown.yml b/pkgdown.yml
index 0d7ed47..24f7ddf 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 3.1.11
 pkgdown: 2.0.9
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-06-25T09:57Z
+last_built: 2024-06-25T12:56Z
 
diff --git a/profiles.html b/profiles.html
index f133f4f..c6d7cd5 100644
--- a/profiles.html
+++ b/profiles.html
@@ -306,7 +306,7 @@ <h1>Learner Profiles</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.5" class="external-link">pegboard (0.7.5)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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diff --git a/reference.html b/reference.html
index d3bc74b..8c795e5 100644
--- a/reference.html
+++ b/reference.html
@@ -344,7 +344,7 @@ <h1>Glossary</h1>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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