Vendor group links broken in developer policy doc

[danakj]

https://llvm.org/docs/DeveloperPolicy.html contains two links, which are 404:

• Clang vendors
• libc++ vendors

[danakj]

I know the new vendor groups are on github somewhere but having trouble finding them.

[danakj]

Ah here we go
https://github.com/orgs/llvm/teams/clang-vendors
https://github.com/orgs/llvm/teams/libcxx-vendors

[rnk]

Fixed by PR #132313 , and the online docs look up to date this morning.