address reviews

Author: anutosh491

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

@@ -74,6 +74,7 @@ jobs:
               --XeusAddon.prefix=${{ env.PREFIX }} \
               --contents README.md \
               --contents notebooks/xeus-cpp-lite-demo.ipynb \
+              --contents notebooks/smallpt.ipynb \
               --contents notebooks/images/marie.png \
               --contents notebooks/audio/audio.wav \
               --output-dir dist