- Add prominent language selection section at the top of each README
- Include flag emojis and clear language indicators (🇨🇳 中文, 🇺🇸 English, 🇪🇸 Español)
- Format as horizontal table for easy scanning and navigation
- Show current language with arrow indicator (← Current/当前/Actual)
- Use relative links that work on both GitHub and local repositories
- Improve discoverability of multilingual documentation
- Consistent navigation across all three language versions
- Add README_en.md: Complete English translation of project documentation
- Add README_es.md: Complete Spanish translation of project documentation
- Maintain exact same structure, formatting, and technical accuracy as original
- Preserve all markdown formatting, links, code examples, and legal disclaimers
- Keep original Chinese README.md unchanged
- Support for English and Spanish-speaking developers while maintaining educational focus