README. You put it at the base of your project's repository and fill it with a small file you put in the base of your project's public repository. Fill it with information explaining what your project's about, its development status, who helped build it, and where people can learn more.
Poirot is a command line tool for finding text patterns in a Git repository’s full revision history—commit diffs and messages. It’s especially useful as part of a pre-commit hook.