docs: update readme

README.md

@@ -86,6 +86,8 @@ Copyright (c) 2024 菲鸽
 
 如果对你有帮助，请给作者加鸡腿~
 
+> 一毛钱也是鼓励 ^\_^
+
 <p align='center'>
 <img alt="special sponsor appwrite" src="./screenshots/pay-weixin.png" width="200">
 <img alt="special sponsor appwrite" src="./screenshots/pay-ali.png" width="200">
@@ -93,6 +95,8 @@ Copyright (c) 2024 菲鸽
 
 ## 官方QQ群
 
+扫码进 QQ 群，备注 `unibest` 即可。
+
 <p align='center'>
-<img alt="special sponsor appwrite" src="./screenshots/qq-group.png" width="300">
+<img alt="special sponsor appwrite" src="./screenshots/qq-group.png" width="200">
 </p>