Worked on the dsc-courses/practice.dsc10.com repository to enhance documentation clarity and maintainability. Focused on improving explanations of DataFrame merges by detailing merge properties and the logic behind resulting row counts, thereby reducing ambiguity for students. Applied Markdown to refine formatting and punctuation in midterm content, which improved readability and consistency across answer sections. Leveraged skills in data analysis and Pandas to ensure technical accuracy in documentation updates. All changes were delivered through clearly traceable commits with descriptive messages, supporting future maintainability. The work addressed student confusion and streamlined support by providing clearer, more accessible guidance within the course materials.