docs: update docs

Author: z0gSh1u

README.md

@@ -19,21 +19,20 @@
 
 > Manage multiple windows of Electron gracefully and provide powerful features.
 
+<p align="center"><img src="screenshot.png" width="600px"/></p>
+
 ## Installation
 
 ```bash
 $ npm i electron-windows --save
 ```
 
-## Demo
-
-![](./screenshot.png)
-
 ## Quick Start
 
 ```javascript
 const WindowManager = require('electron-windows')
 
+// Create a window manager instance
 const windowManager = new WindowManager()
 
 // Create a window
@@ -120,7 +119,7 @@ Static method. Set global user agent for all windows.
 | :---: | :---: | :---: | :---: | :---: | :---: |
 [<img src="https://avatars.githubusercontent.com/u/11213298?v=4" width="80px;"/><br/><sub><b>WynterDing</b></sub>](https://github.com/WynterDing)<br/>|[<img src="https://avatars.githubusercontent.com/u/4081746?v=4" width="80px;"/><br/><sub><b>zlyi</b></sub>](https://github.com/zlyi)<br/>|[<img src="https://avatars.githubusercontent.com/u/50158871?v=4" width="80px;"/><br/><sub><b>moshangqi</b></sub>](https://github.com/moshangqi)<br/>
 
-This project follows the git-contributor [spec](https://github.com/xudafeng/git-contributor), auto updated at `Mon Feb 23 2026 15:23:51 GMT+0800`.
+This project follows the git-contributor [spec](https://github.com/xudafeng/git-contributor), auto updated at `Tue Feb 24 2026 17:35:12 GMT+0800`.
 
 <!-- GITCONTRIBUTOR_END -->