Submit to community index

[ivy]

From the sample readme:

If you'd like your Features to appear in our public index so that other community members can find them, you can do the following:

• Go to github.com/devcontainers/devcontainers.github.io
  • This is the GitHub repo backing the containers.dev spec site
• Open a PR to modify the collection-index.yml file

This index is from where supporting tools like VS Code Dev Containers and GitHub Codespaces surface Features for their dev container creation UI.

[ivy]

I opened a PR at devcontainers/devcontainers.github.io#502 🤞