diff --git a/docs/repl-driven-development/documentation.md b/docs/repl-driven-development/documentation.md
new file mode 100644
index 00000000..2fe9c825
--- /dev/null
+++ b/docs/repl-driven-development/documentation.md
@@ -0,0 +1,5 @@
+# Documentation
+
+++"K"++ or ++spc++ ++"l"++ ++"h"++ shows the documentation for the function under the cursor in a popup window.
+
+++"K"++ a second time to jump the cursor to the popup window to scroll the text if required (or use a mouse wheel)
diff --git a/mkdocs.yml b/mkdocs.yml
index 9727d25a..71c823ac 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -173,6 +173,7 @@ nav:
   - Clojure REPL Workflow:
       - repl-driven-development/index.md
       - Conjure: repl-driven-development/conjure.md
+      - Documentation: repl-driven-development/documentation.md
       - Structural Editing: repl-driven-development/structural-editing.md
       - Refactor Tools: repl-driven-development/refactor-tools.md
       - Testing: repl-driven-development/testing.md