diff --git a/doc/README_EN.md b/doc/README_EN.md
index 4797a3b..d3ff6b2 100644
--- a/doc/README_EN.md
+++ b/doc/README_EN.md
@@ -143,6 +143,7 @@ Here are some implicit practical features.
 ### General Operations
 
 1.  **Zoom**: In the terminal, file manager, and text editor components, you can use `Ctrl + Mouse Wheel` to zoom.
+2. **Sidebar**: The expanded sidebar can have its width adjusted by dragging.
 
 ## ⚠️ Notes
 
@@ -159,4 +160,4 @@ If you find this project helpful, feel free to buy me a coffee through the follo
 
 ## 📄 License
 
-This project is licensed under the [GPL-3.0](LICENSE) license. See the [LICENSE](LICENSE) file for details.
\ No newline at end of file
+This project is licensed under the [GPL-3.0](LICENSE) license. See the [LICENSE](LICENSE) file for details.