Update README.md

README.md

@@ -13,7 +13,7 @@ size_categories:
 
 <div align="center">
     <img src="Yi_logo.svg" width="150px" style="display: inline-block;">
-    <img src="siat-logo.png" width="150px" style="display: inline-block;">  
+    <img src="siat-logo.jpg" width="150px" style="display: inline-block;">  
     <img src="m-a-p.png" width="150px" style="display: inline-block;">
 </div>