UPdate testing to check for build correctness

.github/workflows/build-publish.yml

@@ -84,8 +84,7 @@ jobs:
       - name: Build the book
         run: |
           PYVISTA_JUPYTER_BACKEND=static PYVISTA_OFF_SCREEN=false jupyter-book build  -W .
-      # Add in -W once matplotlib is gone
-      # Pusb book to HTML to github pages
+      # Push book to HTML to github pages
       - name: GitHub Pages action
         uses: peaceiris/actions-gh-pages@v3.5.9
         with:

.github/workflows/main-test.yml

@@ -42,11 +42,14 @@ jobs:
           apt-get clean
           rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
           pip3 install --no-cache-dir tqdm pandas seaborn
-          pip3 install notebook nbconvert jupyter-book myst_parser pyvista jupyterlab
+          pip3 install notebook nbconvert jupyter-book myst_parser pyvista jupyterlab jupyter
           pip3 install ipygany pythreejs
           pip3 install --no-cache-dir matplotlib setuptools --upgrade
           jupyter nbextension enable --py --sys-prefix ipygany
           rm -rf /usr/local/share/.cache/*
+      - name: Test building the book
+        run: 
+          PYVISTA_JUPYTER_BACKEND=static PYVISTA_OFF_SCREEN=false jupyter-book build  -W .
       - name: Test notebooks in parallel
         run: |
           cd chapter1