Worked on enhancing the quality of Chinese language course materials in the huggingface/course repository by finalizing documentation, improving code formatting, and correcting typographical errors in Markdown files. Focused on increasing the readability and consistency of zh-CN content, the developer applied technical writing and code formatting skills across multiple chapters, ensuring alignment with the course style guide. Using Python and Markdown, the updates streamlined the structure of code examples and documentation, which helps reduce future localization maintenance and coordination efforts. The work established a stronger baseline for course content quality, directly supporting a better learning experience for Chinese-speaking users.