Worked on the emqx/emqx-docs repository to enhance the quality and maintainability of authentication documentation, with a particular focus on the Chinese PostgreSQL password authentication guides. Addressed a documentation bug by correcting a technical typo and resolving formatting inconsistencies, ensuring that the authentication process was described accurately and clearly. Reorganized content to improve readability and onboarding for new users, which helped reduce support overhead. Employed Markdown for technical writing and documentation, applying strong attention to detail and a methodical approach to content structure. The work emphasized clarity, accuracy, and traceability in documentation updates, supporting better developer and user experiences.