[libc-commits] [libc] Rename `libc/hdrgen/yaml/` to `libc/hdrgen/spec/` (PR #120931)

[Chris White via libc-commits]

https://github.com/whiteio commented:

Noticed that `libc/hdrgen/yaml/` was mentioned in the docs (`libc/docs/dev/header_generation.rst`) a few times, probably worth updating these too:
* https://github.com/llvm/llvm-project/blob/main/libc/docs/dev/header_generation.rst?plain=1#L48
* https://github.com/llvm/llvm-project/blob/main/libc/docs/dev/header_generation.rst?plain=1#L55
* https://github.com/llvm/llvm-project/blob/main/libc/docs/dev/header_generation.rst?plain=1#L120

https://github.com/llvm/llvm-project/pull/120931