Jaehoon Yi enhanced the lambda-feedback/user-documentation repository by refining documentation readability and consistency. Focusing on Markdown and documentation best practices, Jaehoon introduced a targeted punctuation update, adding a colon after the 'Overview of documentation' heading. This change clarified navigation cues and reduced potential confusion for users, supporting faster onboarding and more effective self-service. The work was delivered through a single, well-documented commit, demonstrating attention to traceability and commit hygiene. While the scope was narrow, the update reinforced documentation standards and improved knowledge transfer for both users and internal teams, leveraging skills in technical writing and structured documentation workflows.