readme improvement

README.md

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 [![Documentation](https://img.shields.io/badge/documentation-white?style=for-the-badge&logo=readthedocs&logoColor=red)](https://docs.espressif.com/projects/idf-im-ui/en/latest/)
 
-EIM is a cross-platform GUI application that simplifies the setup process for ESP-IDF (Espressif IoT Development Framework). Whether you’re working on macOS, Linux, or Windows, EIM offers a consistent and user-friendly experience for installing prerequisites, ESP-IDF itself, and essential development tools.
+A cross-platform graphical user interface for installing and managing ESP-IDF (Espressif IoT Development Framework) and its dependencies. This tool provides a user-friendly way to set up ESP-IDF across Windows, macOS, and Linux platforms.
+
+## Features
+
+- 🔄 Cross-platform compatibility
+- ⚙️ Configurable installation options
+- 🖥️ Simple and expert installation modes
+- 📦 TOML configuration support
+
+## Installation Options
+
+### Simplified Installation
+
+Quick, automated installation process with default settings suitable for most users.
+
+### Expert Installation
+
+Step-by-step wizard with additional configuration options:
+
+- Target chip selection
+- ESP-IDF version selection
+- Mirror configuration
+- Custom installation paths
+
+## Platform Support
+
+- Windows (PowerShell shortcuts created automatically)
+- macOS (Shell script for environment activation)
+- Linux (Shell script for environment activation)
+
+## Documentation
+
+For detailed installation instructions and configuration options, please visit our [documentation](https://docs.espressif.com/projects/idf-im-ui/en/latest/).
+
+## Contributing
+
+Pull requests are welcome! For major changes, please open an issue first to discuss what you would like to change.
+
+## Issues
+
+If you encounter any problems, please file an issue at [GitHub Issues](https://github.com/espressif/idf-im-ui/issues).
+
+## Related Projects
+
+- [ESP-IDF](https://github.com/espressif/esp-idf)
+- [ESP-IDF Installation Manager CLI](https://github.com/espressif/idf-im-cli)
+
+## License
+
+This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.