This is a dummy npm package that allows us to treat it as an eslint-plugin. It's not actually published, nor are the rules here useful for users of React. If you want to lint your React code, try https://github.com/yannickcr/eslint-plugin-react.
If you modify this rule, you must re-run npm install ./eslint-rules for it to take effect.