Trieu Hoang Tinh focused on maintaining and updating user-facing documentation within the dzokha1010/SysAdmin repository, delivering a targeted asset update to the CNTT2211030.docx file. Working primarily with Markdown and document management tools, Trieu ensured that onboarding materials and feature policies remained current and accurate, supporting both new user integration and ongoing documentation governance. The update was executed without code changes, emphasizing careful version control and asset traceability. While the work did not involve direct software development or bug fixes, it contributed to improved self-service capabilities and reduced support needs by keeping essential documentation aligned with evolving project requirements.