Deno app template using Github Codespace.
- Deno: https://deno.land/
- Configuring Codespaces for your project: https://docs.github.com/en/free-pro-team@latest/github/developing-online-with-codespaces/configuring-codespaces-for-your-project
- devcontainer.json reference: https://code.visualstudio.com/docs/remote/devcontainerjson-reference