Jiajia Teng developed foundational documentation for the HWTeng-Teaching/202409-Math-Stat repository, focusing on creating a robust readme.md and refining artifact documentation for homework assignments. Using Markdown and leveraging strong documentation skills, Jiajia established a clear scaffolding that consolidated image references and improved the discoverability of project artifacts. The technical approach involved iteratively updating documentation files to ensure image integrity, accurate author attribution, and accessible formatting. These enhancements addressed onboarding and maintainability challenges by enabling consistent knowledge transfer and streamlining review processes. The work demonstrated depth in documentation structure and attention to detail, though it did not involve direct bug fixes or code changes.