Jonathan Nicolet contributed to the heig-vd-dai-course repository by updating the README file to accurately reflect the current list of project contributors. He focused on improving the documentation process, specifically ensuring that participant attribution was up to date and clearly presented for onboarding and recognition purposes. Using Markdown, Jonathan followed the established pull request and review workflow to implement the change, which was tracked through a single, traceable commit. While the scope of work was limited to documentation and did not involve bug fixes or feature development, the update supported project transparency and maintained consistency in contributor records for the repository.