Update README.md

Author: overtrue

README.md

@@ -2,7 +2,7 @@
 
 [Qiniu](http://www.qiniu.com/) storage for Laravel based on [overtrue/flysystem-qiniu](https://github.com/overtrue/flysystem-qiniu).
 
-[![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)
 
 # Requirement
 
@@ -86,7 +86,7 @@ $url = $disk->privateDownloadUrl('folder/my_file.txt');
 
 ## :heart: Sponsor me 
 
-[![Sponsor me](https://raw.githubusercontent.com/overtrue/overtrue/master/sponsor-me.svg)](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)