Worked on the restful3/ds4th_study repository to enhance study materials and improve accessibility for users. Focused on documentation by updating the README in Markdown, clarifying presenter information, and adding direct links to key resources for easier navigation. Introduced a new PDF resource to the materials, ensuring that study participants could access the latest content efficiently. All updates were isolated to documentation and resource files, maintaining repository stability with no major bugs reported. Emphasized clear onboarding and resource discoverability, leveraging skills in documentation and Markdown to support collaborative learning and maintain high-quality, accessible materials throughout the development period.