Recommendation for Readme

[David O'Connor]

I would add a section near the beginning explaining how this library compares to A: Rustacuda, B: Rust CUDA, and C: FFI/cc. I'm happy to do a PR.

Bottom line: This library works, while the others are broken, CAO November 2023.

[Corey Lowman]

Yeah just open a PR and I can review/merge 😄