We welcome contributions to this template and encourage to create a fork, clone, create a new branch (such as fix-for-issue-121), work on the new branch — not master, and create a pull request.
Be sure to create a separate branch for each improvement you implement.
Take a look at GitHub's excellent [help documentation] for a detailed explanation and the explanation of Feature Branch Workflow for the idea behind this kind of development.
Alternatively, you can just use the edit button if a single file in the web browser. Steps described at https://github.com/JabRef/help.jabref.org/blob/gh-pages/CONTRIBUTING.md. Keep in mind that these steps are wrote for https://help.jabref.org, but they are also fully applicable for this repository.
By contributing, you agree that your contribution is made available under CC0, but that the current maintainer of this work may change the license as it fits.
Create a pull request on GitHub. For text inspirations, consider How to write the perfect pull request.
You can add the prefix [WIP] to indicate that the pull request is not yet complete, but you want to discuss something or inform about the current state of affairs.