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.github/CONTRIBUTING.md

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+# Contributing
+
+## Reporting Issues and Asking Questions
+
+Before opening an issue, please search the [issue
+tracker](https://github.com/necolas/react-native-web/issues) to make sure your
+issue hasn't already been reported.
+
+## Getting started
+
+Visit the [Issue tracker](https://github.com/necolas/react-native-web/issues)
+to find a list of open issues that need attention.
+
+Fork, then clone the repo:
+
+```
+git clone https://github.com/your-username/react-native-web.git
+```
+
+Install dependencies (requires [yarn](https://yarnpkg.com/en/docs/install):
+
+```
+yarn
+```
+
+## Unit tests
+
+To run the unit tests:
+
+```
+npm test
+```
+
+…in watch mode:
+
+```
+npm run test:watch
+```
+
+## Visual tests
+
+Run the interactive storybook:
+
+```
+npm run docs:start
+```
+
+Run generate a static build of the storybook:
+
+```
+npm run docs:build
+```
+
+Run the performance benchmarks in a browser (opening `./performance/index.html`):
+
+```
+npm run benchmarks
+```
+
+## Compile and build
+
+Compile the source code to `dist`:
+
+```
+npm run compile
+```
+
+To create a UMD bundle of the library:
+
+```
+npm run build
+```
+
+### Pre-commit
+
+Before creating a commit run:
+
+```
+npm run precommit
+```
+
+To format and lint the entire project:
+
+```
+npm run fmt
+npm run lint
+```
+
+### New Features
+
+Please open an issue with a proposal for a new feature or refactoring before
+starting on the work. We don't want you to waste your efforts on a pull request
+that we won't want to accept.
+
+## Submitting Changes
+
+* Open a new issue in the [Issue tracker](https://github.com/necolas/react-native-web/issues).
+* Fork the repo.
+* Create a new feature branch based off the `master` branch.
+* Make sure all tests pass and there are no linting errors.
+* Submit a pull request, referencing any issues it addresses.
+
+Please try to keep your pull request focused in scope and avoid including
+unrelated commits.
+
+After you have submitted your pull request, we'll try to get back to you as
+soon as possible. We may suggest some changes or improvements.
+
+Thank you for contributing!