diff --git a/content/gh_workflow.md b/content/gh_workflow.md
index 90bc2c4c..046e9080 100644
--- a/content/gh_workflow.md
+++ b/content/gh_workflow.md
@@ -25,7 +25,7 @@
 
 ---
 
-## Exercise - Deploy Sphinx documentation to GitHub Pages
+## Demonstration - Deploy Sphinx documentation to GitHub Pages
 
 ````{exercise} GH-Pages-1: Deploy Sphinx documentation to GitHub Pages
 In this exercise we will create an example repository on GitHub and
@@ -95,7 +95,24 @@ jobs:
 - Commit some changes to your documentation
 - Verify that the documentation website refreshes after your changes (can take few seconds or a minute)
 ````
-
+## Exercise - Sphinx documentation on GitHub Pages
+````{exercise} GH-Pages-2: Deploy Sphinx documentation to GitHub Pages
+1. Follow the above instructions to create a new repository with a Sphinx documentation project;
+2. Try adding one or more of the following to your Sphinx project:  
+   a. API documentation (see [previous exercise](#api-exercise) on API references)  
+   b. a Jupyter notebook (see [previous exercise](#jupyter-exercise) on Jupyter notebooks)  
+   c. change the theme (see the end of [the quickstart](#quickstart))  
+
+   ```{important}
+      The computer on which the GitHub actions run is *not* your local machine,
+      and might not have the libraries you need to build the project.
+      Make sure you update the dependencies (installed with `pip` in the demonstration) appropriately.      
+   ```
+   ```{important}
+      Make sure the correct file paths are used where appropriate.
+   ```
+What do you need to change in the workflow file?
+````
 
 ## Alternatives to GitHub Pages
 
diff --git a/content/sphinx.md b/content/sphinx.md
index 9cef5c4c..8af3d135 100644
--- a/content/sphinx.md
+++ b/content/sphinx.md
@@ -66,7 +66,7 @@ But please don't give up if you don't have these - the episodes after this one w
 tools.
 ````
 
-
+(quickstart)=
 ## Exercise: Sphinx quickstart
 
 ````{exercise} Sphinx-1: Generate the basic documentation template
@@ -328,7 +328,7 @@ extensions = ['myst_parser', 'sphinx.ext.mathjax']
 
 `````
 
-
+(api-exercise)=
 ## Exercise: Sphinx autodoc
 
 `````{exercise} Sphinx-3: Auto-generating documentation from Python docstrings
@@ -369,7 +369,7 @@ If you already have extensions from another exercise, just add `"autodoc2"` to t
 5. Re-build the documentation and check the "API reference" section.
 `````
 
-
+(jupyter-exercise)=
 ## Exercise: Using Jupyter with Sphinx
 
 `````{exercise} Sphinx-4: Writing Sphinx content with Jupyter