Zhang Xiaokang focused on enhancing documentation and knowledge management within the WHU_FinTech_Workshop repository over a two-month period. He centralized monthly summary PDFs, streamlining stakeholder access and improving onboarding for new team members. Using Git for version control and repository hygiene, Zhang maintained stable codebases while expanding the knowledge base with well-organized documentation. His work emphasized content delivery and traceability, leveraging Markdown and PDF workflows to ensure clarity and accessibility. Although no code features or bug fixes were introduced, the depth of his contributions lay in reinforcing governance, transparency, and efficient knowledge transfer through disciplined documentation practices and structured repository updates.