Jaehoon Yi enhanced the lambda-feedback/user-documentation repository by refining documentation readability and consistency. He focused on improving the clarity of section headings, specifically by adding a colon after the 'Overview of documentation' heading, which helps users navigate content more efficiently and reduces onboarding friction. This targeted update was implemented using Markdown, demonstrating attention to detail in documentation standards and commit traceability. While the scope of work was limited to a single feature and did not involve bug fixes or code changes, Jaehoon’s contribution supported faster self-service help and knowledge transfer, reinforcing the repository’s overall documentation quality for both users and teams.