[compiler] Script to produce markdown of lint rule docs (#34260)

The docs site is in a separate repo, but this gives us a semi-automated
way to update the docs about our lint rules. The script generates
markdown files from the rule definitions which we can then manually
copy/paste into the docs site somewhere. In the future we can automate
this fully.

DiffTrain build for [425ba0ad6d3ebd1779f6a658dcbf5c666d054948](https://github.com/facebook/react/commit/425ba0ad6d3ebd1779f6a658dcbf5c666d054948)