Thibault Matthey focused on improving documentation hygiene in the heig-vd-dai-course repository by updating the README file to enhance contributor recognition. He delivered a non-functional change that added his name to the Contributors section, using Markdown to ensure clarity and consistency in project records. This update did not introduce new features or address any bugs, but it improved project traceability and onboarding for future collaborators. Thibault’s work centered on documentation best practices, emphasizing the importance of accurate contributor history. The technical approach relied on Markdown editing and version control, reflecting a targeted effort to maintain clear and accessible project documentation.