Add pre-commit hooks

[isaac-chung]

• add black as pre-commit hook
• To run
  • First install pre-commit: pip install pre-commit (or on mac brew install pre-commit)
  • check version with pre-commit --version
  • in the root of this repo, run pre-commit install
  • Then every time we run git commit, the checks are run. If the files are reformatted, git add and git commit again

Note that I've left out the rest of the hooks from here as they are not present in the GH checks.

[isaac-chung]

@anas-awadalla Here we go 👍

[anas-awadalla]

This is very cool. Can you add the instructions on this in the readme? Under a development sub-header in the installations sections.

[isaac-chung]

For sure.