fix: contact info

Author: yanglbme

docs-en/index.md

@@ -87,5 +87,5 @@ The copyright of this project belongs to [Doocs](https://github.com/doocs) commu
 We welcome everyone to add @yanglbme's personal WeChat (WeChat ID: YLB0109), with the note "leetcode". In the future, we will create algorithm and technology related discussion groups, where we can learn and share experiences together, and make progress together.
 
 <p align="center">
-  <a href="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/images/qrcode-for-yanglbme.png"><img src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/images/qrcode-for-yanglbme.png" width="260px"></a>
+  <a href="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/images/qrcode-for-yanglbme-en.png"><img src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/images/qrcode-for-yanglbme-en.png" width="260px"></a>
 </p>