Contributed onboarding documentation for the Koumori lecture series within the PiPi_Git-intro repository, focusing on content creation and repository organization. Developed a self-introduction file in Markdown, ensuring the structure supports future lecture materials and smooth instructor onboarding. Employed Git workflows to manage version control and maintain repository health, with all changes tracked through clear, localization-friendly commit messages. The work emphasized documentation best practices and did not involve bug fixes or feature development beyond the initial onboarding content. This approach provided a foundation for scalable documentation, leveraging Markdown and Git to facilitate collaboration and future expansion of the lecture series materials.