Apple reset this on every OS X major (and some minor) updates and it
always proves a painful and unnecessary step. Instead just check the
directories we actually care about are writable.
This may mean if these directories do not already exist (although they
are now created by the installed) that `brew link` will fail and require
manual intervention but this seems to be superior for both new and the
majority of existing users.
Remove duplication, link to the API documentation more often,
tweak wording, add `@UniqMartin` as a maintainer, note `@jacknagel`'s
and `@adamv`'s significant past contributions to Homebrew, delete some
outdated or unneeded documentation, add some missing `Formula` API.
entries and simplify/improve `CONTRIBUTING.md`.
ClosesHomebrew/homebrew#46179.
ClosesHomebrew/homebrew#46618.
Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Always use the `<user/repo>` format as used by the `brew tap` command.
Also fixed a link to `homebrew/head-only` and sorted a list in `FAQ.md`
in alphabetical order.
ClosesHomebrew/homebrew#45535.
Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>