ESLint rule documentation

[justinfarrelldev]

What is the problem this feature would solve?

At a glance, I do not know where the documentation is (if there is any) for this repo. If there is documentation, it would be very useful to have that information in the README. If there is no documentation yet, I would love to make a PR for that feature!

What is the feature you are proposing to solve the problem?

Simply documentation for the ESLint rules, similar to other plugins such as eslint-plugin-ts-immutable.

What alternatives have you considered?

I could not find the documentation, hence why I am creating this.