Changes

• Added a complete Chinese version of the README document (README.zh-CN.md)
• Translated all major chapters, including:
• Project introduction and features
• Quick Start Guide
• Working principle description
• Usage Examples
• FAQ
• Contribution Guidelines, etc.

Localization Improvements

• Maintained the original document structure and format
• Use expressions suitable for Chinese readers
• All technical terms are kept accurate
• Updated the contribution guide link to point to the Chinese version

test

• Checked the validity of all links
• Verified the format of code blocks
• Confirmed the correctness of the image and video links

This will help Chinese developers better understand and use the GitMCP project.