Symfony2 CMF is an open source, community-driven project. We follow the same guidelines as core Symfony2. If you'd like to contribute, please read the Contributing Documentation part of the documentation. If you're submitting a pull request, please make yourself comfortable with the format, follow the guidelines in the Creating a Pull Request section and use the Pull Request Format.
⚠️ NOTE If you are documenting new features you should base your PR on the dev branch, not the master branch.