Update index.html

Author: SHYuanBest

index.html

@@ -32,7 +32,7 @@
   <link rel="stylesheet"
         href="https://cdn.jsdelivr.net/gh/jpswalsh/academicons@1/css/academicons.min.css">
   <link rel="stylesheet" href="./static/css/index.css">
-  <link rel="icon" href="./static/images/favicon.svg">
+  <link rel="icon" type="image/png" href="https://raw.githubusercontent.com/SHYuanBest/shyuanbest_media/main/profile/pku_logo.png">
 
   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
   <script defer src="./static/js/fontawesome.all.min.js"></script>