I feel we should create better contributing guidelines for this project. I know its only a small crate, but it would be best if issues were opened before PRs and the current info in the README just says "Contributions and PRs are very welcome!"

I personally think a CONTRIBUTING.md file is the way to go, with info on how to pass CI, (testing, clippy, formatting etc). Also updating the README to ask contributors to open an issue first and read the file would be a good idea.