Summary:
We want to pull RN API docs into exponent. So moving them into a module will be useful since we don't want to keep a duplicate list.
Run `npm start` in the `website` folder and see it still generates docs.
cc brentvatne
Closes https://github.com/facebook/react-native/pull/11712
Differential Revision: D4380320
fbshipit-source-id: 103e5deecdbe9aa1a4690496bf954b5cdd6be097
Satyajit Sahoo