Worked on enhancing the documentation for the apache/paimon repository, focusing on clarifying manifest metadata to support data integrators and engineers. Improved the manifest.md file by adding explicit definitions for fileSource and valueStatsCols, ensuring that metadata specifications are easier to understand and reducing the risk of misconfiguration. Employed Markdown to deliver these updates, applying documentation best practices and RFC-style specification writing to maintain clarity and consistency. The work emphasized maintainability and onboarding efficiency, with precise change tracking in a live repository. No bugs were addressed during this period, as the primary focus remained on documentation quality and technical accuracy.