Use README as crate documentation

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

:white_check_mark: All tests successful. No failed tests found.

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #130 will not alter performance

_{Comparing 129-use-readme-as-crate-documentation (dec86c0) with main (0b2d6b4)}

Summary

✅ 16 untouched benchmarks