📕docs: Add DeepWiki Badge in `README.en.md`

README.en.md

@@ -44,6 +44,9 @@
 
 For detailed documentation, please visit our official Wiki: [https://docs.newapi.pro/](https://docs.newapi.pro/)
 
+You can also access the AI-generated DeepWiki:
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/QuantumNous/new-api)
+
 ## ✨ Key Features
 
 New API offers a wide range of features, please refer to [Features Introduction](https://docs.newapi.pro/wiki/features-introduction) for details: