Worked on improving documentation quality for the AdguardTeam/tsurlfilter repository, focusing on enhancing clarity and accuracy for developer onboarding. Addressed a documentation bug by correcting typos and clarifying usage instructions in both the main README and the agtree converter README. Updated a broken link to ensure references to downstream tooling, such as tswebextension-mv2, remained accurate and accessible. The work emphasized maintainability and reduced support overhead by providing clearer guidance for contributors. Utilized Markdown for documentation updates and TypeScript knowledge to ensure technical accuracy, applying code refactoring and documentation skills to streamline the onboarding process and improve overall project usability.