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+# Guidelines for contributing to the OpenFisca documentation
+
+Fist of all, thank you for wanting to contribute to OpenFisca! :smiley:
+
+## Copywriting
+
+British English is used in the documentation.
+
+## Pull requests
+
+We follow the [GitHub Flow](https://docs.github.com/get-started/using-github/github-flow): all code contributions are submitted via a pull request towards the `main` branch.
+
+Opening a Pull Request means you want that code to be merged. If you want to only discuss it, send a link to your branch along with your questions through whichever communication channel you prefer.
+
+### Peer reviews
+
+All pull requests must be reviewed by someone else than their original author.
+
+> In case of a lack of available reviewers, one may review oneself, but only after at least 24 hours have passed without working on the code to review.
+
+To help reviewers, make sure to add to your PR a **clear text explanation** of your changes.