Add example notebooks to deployment (#205)

Author: mcbarton

.github/workflows/deploy-github-page.yml

@@ -76,13 +76,10 @@ jobs:
         run: |
           micromamba create -n xeus-lite-host jupyterlite-core
           micromamba activate xeus-lite-host
-          python -m pip install jupyterlite-xeus
-          jupyter lite build --XeusAddon.prefix=${{ env.PREFIX }} --output-dir dist
+          python -m pip install jupyterlite-xeus jupyter_server
+          jupyter lite build --XeusAddon.prefix=${{ env.PREFIX }} --contents notebooks --output-dir dist
           cp $PREFIX/bin/xcpp.data dist/extensions/@jupyterlite/xeus/static
           cp $PREFIX/lib/libclangCppInterOp.so dist/extensions/@jupyterlite/xeus/static
-          mkdir -p dist/files
-          mv notebooks dist/files
-          mv README.md dist/files
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3