diff --git a/README.md b/README.md
index 5f1bbfd..9dcb632 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Unofficial Sonos docs
 
-[![Sonos api documentation][badge_sonos-docs]][link_sonos-docs]
+[![Sonos API documentation][badge_sonos-docs]][link_sonos-docs]
 [![Github Issues][badge_issues]][link_issues]
 [![Sonos2mqtt][badge_sonos-mqtt]][link_sonos-mqtt]
 [![Sonos cli][badge_sonos-cli]][link_sonos-cli]
@@ -9,15 +9,15 @@
 [![Support me on Github][badge_sponsor]][link_sponsor]
 [![Follow on Twitter][badge_twitter]][link_twitter]
 
-Sonos api documentation for the local UPNP api and a [generator](https://github.com/svrooij/sonos-api-docs/tree/main/generator/sonos-docs) to generate clients and documentation based on service discovery
+Sonos API documentation for the local UPNP API and a [generator](https://github.com/svrooij/sonos-api-docs/tree/main/generator/sonos-docs) to generate clients and documentation based on service discovery
 
-This library is in no way connected to [Sonos](//en.wikipedia.org/wiki/Sonos). It's just a set of text files to document a hidden and **unsupported** api.
+This library is in no way connected to [Sonos](//en.wikipedia.org/wiki/Sonos). It's just a set of text files to document a hidden and **unsupported** API.
 
 ## Documentation
 
 Check-out the (generated) documentation about all the SONOS UPNP services [svrooij.io/sonos-api-docs/services/](https://sonos.svrooij.io/services/)
 
-[![Sonos api documentation][badge_sonos-docs]][link_sonos-docs]
+[![Sonos API documentation][badge_sonos-docs]][link_sonos-docs]
 
 [Read documentation](https://sonos.svrooij.io/)
 
diff --git a/docs/documentation.json b/docs/documentation.json
index 6c18926..59e1144 100644
--- a/docs/documentation.json
+++ b/docs/documentation.json
@@ -72,7 +72,7 @@
       "description": "Control line in"
     },
     "AVTransportService": {
-      "description": "Service that controls stuff related to transport (play/pause/next/special urls)",
+      "description": "Service that controls stuff related to transport (play/pause/next/special URLs)",
       "actions": {
         "AddURIToQueue": {
           "description": "Adds songs to the SONOS queue",
diff --git a/docs/music-services.md b/docs/music-services.md
index 50d7a37..a8ff0d3 100644
--- a/docs/music-services.md
+++ b/docs/music-services.md
@@ -245,7 +245,7 @@ You should get a response that looks like this (Spofity result):
 
 This results in:
 
-- `regUrl` this is the url you should visit in the browser, it will ask you to login.
+- `regUrl` this is the URL you should visit in the browser, it will ask you to login.
 - `linkCode` this is sometimes needed to fill in on the page. And you'll need it for the next step.
 
 #### AppLink - Step 2
@@ -338,7 +338,7 @@ With the following body:
 
 This will results in a response with at least the following data:
 
-- `regUrl` this is the url you should visit in the browser, it will ask you to login.
+- `regUrl` this is the URL you should visit in the browser, it will ask you to login.
 - `linkCode` this is sometimes needed to fill in on the page. And you'll need it for the next step.
 
 Continue with [applink - step 2](#applink---step-2) after visiting the **regUrl** in the browser.
diff --git a/docs/services/av-transport.md b/docs/services/av-transport.md
index 3abed90..bf5fd04 100644
--- a/docs/services/av-transport.md
+++ b/docs/services/av-transport.md
@@ -6,7 +6,7 @@ parent: Sonos Services
 # AVTransport service
 {: .no_toc }
 
-Service that controls stuff related to transport (play/pause/next/special urls)
+Service that controls stuff related to transport (play/pause/next/special URLs)
 
 The AVTransport service is available on these models: `Sonos Play:1 (S1) S2` / `Sonos One (S13) S2` / `Sonos Beam (S14) S2` / `Sonos One (S18) S2` / `SYMFONISK Bookshelf (S21) S2` / `Sonos Roam (S27) S2` / `Sonos Play:3 (S3) S2` / `SYMFONISK Bookshelf (S33) S2` / `Sonos One SL (S38) S2` / `Sonos Play:5 (S6) S2` / `Sonos Playbar (S9) S2` / `Sonos Sub (Sub) S2`.
 
diff --git a/docs/services/index.md b/docs/services/index.md
index 5ab7146..b2de2ec 100644
--- a/docs/services/index.md
+++ b/docs/services/index.md
@@ -23,7 +23,7 @@ These documents can provide you with some extra guidelines. More details can be
 |:--------|:------------|
 | [**AlarmClock**](alarm-clock.html) | Control the sonos alarms and times |
 | [**AudioIn**](audio-in.html) | Control line in |
-| [**AVTransport**](av-transport.html) | Service that controls stuff related to transport (play/pause/next/special urls) |
+| [**AVTransport**](av-transport.html) | Service that controls stuff related to transport (play/pause/next/special URLs) |
 | [**ConnectionManager**](connection-manager.html) | Services related to connections and protocols |
 | [**ContentDirectory**](content-directory.html) | Browse for local content |
 | [**DeviceProperties**](device-properties.html) | Modify device properties, like LED status and stereo pairs |