update readme

README.md

@@ -88,9 +88,3 @@ The file that may cause problem is "webpack.config.js" because it's going to be
 
 Leave a issue here or send email to ztbxxt@hotmail.com, if you encounter problems or want to give advice.
 
-## Buy me a coffee
-Wish you enjoy this work. 
-It will be a greet help when you can make a donation:<br/>
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README_zh.md

@@ -103,9 +103,4 @@ yo joplin
 可以使用github上的issue反馈问题。
 也可以发送邮件至ztbxxt@hotmail.com。
 
-## 发电
-如果您喜欢我的作品， 
-您的捐赠将是对其最大的认可：<br/>
-<a href='https://Ko-fi.com/ztbxxt'><img src="https://img.shields.io/badge/Donate-Ko_fi-442200.svg" /><img src="https://storage.ko-fi.com/cdn/kofi_stroke_cup.svg" alt="alt text" height="20" width="30" /></a>
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