Fist of all, thank you for wanting to contribute to OpenFisca! 😃
British English is used in the documentation.
We follow the 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.
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.