[llvm-branch-commits] [clang] release/21.x: Add pointer auth documentation to contents (#155763) (PR #155954)

[Kristof Beyls via llvm-branch-commits]

https://github.com/kbeyls approved this pull request.

It makes a lot of sense to merge this to the release branch.

https://github.com/llvm/llvm-project/pull/155954