Update index.html

Author: NellowTCS

index.html

@@ -4,7 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>HTMLNotes</title>
-    <link rel="shortcut icon" type="image/x-icon" href="favicon.png">
+    <link rel="shortcut icon" type="image/png" href="favicon.png">
     <link rel="apple-touch-icon" href="favicon.png">
     <link rel="manifest" href="manifest.json">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css"