Merge pull request #667 from OptimalScale/rpan-update-qr-code

update qr code for wechat

README.md

@@ -21,7 +21,7 @@
 [![Doc](https://img.shields.io/badge/Website-Doc-ff69b4.svg)](https://optimalscale.github.io/LMFlow/)
 [![Embark](https://img.shields.io/badge/Discord-LMFlow-%237289da.svg?logo=discord)](https://discord.gg/u9VJNpzhvA)
 [![slack badge](https://img.shields.io/badge/Slack-Join-blueviolet?logo=slack&amp)](https://join.slack.com/t/lmflow/shared_invite/zt-1wju9nicy-woXbNtS~5MavHSAtiMxmxQ)
-[![WeChat badge](https://img.shields.io/badge/WeChat-Join-brightgreen?logo=wechat&amp)](https://i.ibb.co/YNHJR4r/IMG-5414.jpg)
+[![WeChat badge](https://img.shields.io/badge/WeChat-Join-brightgreen?logo=wechat&amp)](https://ibb.co/ZhM4hhn)
 
 An extensible, convenient, and efficient toolbox for finetuning large machine learning models, designed to be user-friendly, speedy and reliable, and accessible to the entire community.