react/.github/PULL_REQUEST_TEMPLATE.md

Before submitting a pull request, please make sure the following is done:

1. Fork the repository and create your branch from master.
2. Run yarn in the repository root.
3. If you've fixed a bug or added code that should be tested, add tests!
4. Ensure the test suite passes (yarn test). Tip: yarn test --watch TestName is helpful in development.
5. Format your code with prettier (yarn prettier).
6. Make sure your code lints (yarn lint). Tip: yarn linc to only check changed files.
7. Run the Flow typechecks (yarn flow).
8. If you haven't already, complete the CLA.

Learn more about contributing: https://reactjs.org/docs/how-to-contribute.html