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 centered on a single feature and did not involve bug fixes, it addressed repository hygiene and laid a foundation for scalable collaboration, reflecting a focused approach to technical documentation.