Explore ways to make nice landing pages easier

[pradyunsg]

This is roughly the idea behind the current hero configuration value and hero.html files. It might also make sense to provide some example templates, that users can build off of, for their documentation sites.

Some documentation landing pages that I'll likely be drawing inspiration from:

• https://tailwindcss.com/docs/installation/
• https://squidfunk.github.io/mkdocs-material/
• https://web.archive.org/web/20220103020154/https://squidfunk.github.io/mkdocs-material/
• https://spaceship-prompt.sh/
• https://starship.rs/
• https://markdoc.io/

[pradyunsg]

If someone has more suggestions for documentation websites with nice landing pages, please do share them!