Update README_EN.md

DM10cn · web-flow · commit 8b507c0420f3 · 2025-07-19T13:01:13.000+08:00
diff --git a/README_EN.md b/README_EN.md
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+## License
+
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
+This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.
+
 👉 [中文版 README (Chinese)](README.md)
 # Gender Checker (GUI App)
 
