Update README.md

Author: overtrue

README.md

@@ -4,7 +4,7 @@
 
 > 交流QQ群：319502940
 
-[![Sponsor me](https://raw.githubusercontent.com/overtrue/overtrue/master/sponsor-me-button-s.svg)](https://github.com/sponsors/overtrue)
+[![Sponsor me](https://github.com/overtrue/overtrue/blob/master/sponsor-me-button-s.svg?raw=true)](https://github.com/sponsors/overtrue)
 
 ## 框架要求
 
@@ -253,7 +253,7 @@ $message = $event->payload; // 开放平台事件通知内容
 
 ## :heart: Sponsor me 
 
-If you like the work I do and want to support it, [you know what to do :heart:](https://github.com/sponsors/overtrue)
+[![Sponsor me](https://github.com/overtrue/overtrue/blob/master/sponsor-me.svg?raw=true)](https://github.com/sponsors/overtrue)
 
 如果你喜欢我的项目并想支持它，[点击这里 :heart:](https://github.com/sponsors/overtrue)