Update README.md

Author: yx9966

README.md

@@ -166,7 +166,7 @@ We welcome any form of contribution! Feel free to make issues, pull requests, or
 
 For any queries or suggestions, please feel free to contact: [email protected].
 <div align="center">
-  <img src="assets/qrcode.png" width="20%"/> 
+  <img src="assets/qrcode1.png" width="20%"/> 
 
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