Rewrite README with better marketing and user engagement

- Add compelling hero section with clear value proposition
- Add Before/After comparison showing the problem we solve
- Add real-world use cases with practical examples
- Improve visual hierarchy with better badges and tables
- Add 'Why Not Just Use...' comparison section
- Add clear call-to-action throughout
- Focus on benefits rather than just features
- Make it more engaging and developer-friendly

Author: vietnguyentuan2019