[libc-commits] [libc] [libc][Docs] Update `libc` documentation for RPC and others (PR #120018)

[Jon Chesterfield via libc-commits]

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

Nice to see the examples looking much simpler after the recent changes, thanks!

https://github.com/llvm/llvm-project/pull/120018