docs: update readme

README.md

@@ -37,8 +37,8 @@ spore-ui/
 │   ├── components.js      # UI components with partial update support
 │   ├── view-models.js     # Data models with UI state management
 │   ├── app.js             # Main application logic
-│   └── test-interface.html  # Test interface
 ├── docs/
+│   └── DISCOVERY_README.md  # Discovery documentation
 │   └── FRAMEWORK_README.md  # Framework documentation
 └── README.md              # This file
 ```