[libcxx-commits] [libcxx] [libc++] Add empty release notes file for LLVM 20 (PR #98355)

[Mark de Wever via libcxx-commits]

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

Thanks I was considering to create a similar patch :-) LGTM!

https://github.com/llvm/llvm-project/pull/98355