Yann Mermoud contributed to the heig-vd-dai-course repository by enhancing project documentation, specifically updating the README to include a new contributor. He focused on improving the visibility and accuracy of contributor records, which supports better onboarding and collaboration for future developers. Using Markdown as the primary language, Yann applied his documentation skills to maintain clear and accessible project information. While the work did not involve bug fixes or feature development beyond documentation, it addressed the ongoing need for up-to-date contributor recognition. The scope of the work was limited but maintained essential project hygiene and supported the repository’s collaborative environment.