During September 2025, David contributed to the HWTeng-Teaching/202509-ML-FinTech repository by authoring and integrating an introductory README.md for the 5058_David project. He focused on improving onboarding and project discoverability by documenting essential author information, academic affiliation, and providing a personal webpage link. Using Markdown for clear structure and Git for version control, David applied documentation best practices to clarify project context and streamline contributor ramp-up. While the work was limited in scope to documentation and did not involve bug fixes or code features, it addressed repository hygiene and laid groundwork for more scalable collaboration and future maintenance.