Update README.md

Author: overtrue

README.md

@@ -18,6 +18,8 @@ Related projects:
 - Subscribe: [overtrue/laravel-subscribe](https://github.com/overtrue/laravel-subscribe)
 - Vote: [overtrue/laravel-vote](https://github.com/overtrue/laravel-vote)
 
+[![Sponsor me](https://raw.githubusercontent.com/overtrue/overtrue/master/sponsor-me-button-s.svg)](https://github.com/sponsors/overtrue)
+
 ## Installing
 
 ```shell
@@ -249,7 +251,7 @@ foreach($users as $user) {
 
 ## :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://raw.githubusercontent.com/overtrue/overtrue/master/sponsor-me.svg)](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)