[llvm] [docs] Add documentation for LLVM Qualification Group (PR #145331)

[Jessica Paquette via llvm-commits]

ornata wrote:

Thanks for this, Wendi!

I think that it would be good to schedule a ~monthly meetup for this group as @kbeyls suggested in the RFC. The reason is, it's a lot easier to justify ratifying a group that's currently meeting.

I've also asked on the LLVM Discord for some suitable reviewers for this PR (with a link to the RFC as well.)

https://github.com/llvm/llvm-project/pull/145331