Worked on the hoodong/2025-2-PLC repository to enhance the clarity of student profiles by expanding the self-introduction section in the 12조.md file. The update added fields for major and year, improving the readability and context for readers and supporting smoother onboarding for new collaborators. The work focused on documentation using Markdown, emphasizing clean commit practices and single-source change management. No bugs were addressed during this period, as the primary focus was on feature delivery and documentation consistency. The approach demonstrated attention to detail in documentation updates and maintained repository hygiene, ensuring accurate and accessible profile information for all users.