[libcxx-commits] [libcxx] [libc++] Add details about string annotations (PR #80912)

[Mark de Wever via libcxx-commits]

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

Thanks! LGTM! Please make sure you backport the fix, if you need assistance let me know.

https://github.com/llvm/llvm-project/pull/80912