Fix head link

Author: halfrost

website/themes/book/layouts/partials/docs/inject/head.html

@@ -1,9 +1,11 @@
 <link rel="stylesheet" href="/leetcode/prism.css"/>
-<link href="{{ "apple-touch-icon.png" | relURL }}"rel="apple-touch-icon" />
+<link href="{{ "apple-touch-icon-60x60.png" | relURL }}" rel="apple-touch-icon" sizes="60x60" />
 <link href="{{ "apple-touch-icon-76x76.png" | relURL }}" rel="apple-touch-icon" sizes="76x76" />
 <link href="{{ "apple-touch-icon-120x120.png" | relURL }}" rel="apple-touch-icon" sizes="120x120" />
 <link href="{{ "apple-touch-icon-152x152.png" | relURL }}" rel="apple-touch-icon" sizes="152x152" />
+<link href="{{ "apple-touch-icon-180x180.png" | relURL }}" rel="apple-touch-icon" sizes="180x180"/>
 <link href="{{ "apple-touch-icon-512x512.png" | relURL }}" rel="apple-touch-icon" sizes="512x512" />
+<link href="{{ "apple-touch-icon-1024x1024.png" | relURL }}" rel="apple-touch-icon" sizes="1024x1024" />
 
 <script>
     var html = document.documentElement;