Make individual topics more discoverable in documentation

[klmr]

Things like

• [ ] ‘roxygen2’ documentation
• [ ] support for testing
• [ ] support for FFI
• [ ] module implementation details
  • [ ] imports (lack of attached core R packges, r/core …)
  • [ ] using modules as application entry points (box::name())
  • [ ] Module search path
  • [ ] Export specification
• [ ] ‘box’ options/environment variables
• [ ] …

should have individual entries in the documentation index to be more discoverable. Vignettes are great but no substitute for this. Neither is the FAQ, or sections inside the box:use() man page.

See also https://twitter.com/rmflight/status/1526192221720137731.