Update README.md

Author: RaffeYang

README.md

@@ -28,8 +28,9 @@ https://user-images.githubusercontent.com/7557357/206844100-001fd7b5-6de5-4042-9
 - [ ] Toggle WeChat Function
 
 ## Install
-
+<p align="center">
 <a href="https://www.raycast.com/raffeyang/wechat"><img src="https://www.raycast.com/raffeyang/wechat/[email protected]" height="64" style="height: 64px;" alt=""></a>
+</p>
 
 ## License