[libclc] [libclc] Convert README to Markdown (PR #111549)

[David Spickett via cfe-commits]

DavidSpickett wrote:

Github won't preview the markdown in the diff because the file moved, but you can see it here: https://github.com/llvm/llvm-project/blob/c84c1754ed6142293a2a06e75900772054cfcc67/libclc/README.md

https://github.com/llvm/llvm-project/pull/111549