Update katex version

Signed-off-by: Kotaro Inoue <[email protected]>

Author: musaprg

app/views/layouts/application.html.erb

@@ -6,7 +6,7 @@
 
     <%= stylesheet_link_tag 'application', media: 'all' %>
     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" />
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.10.1/katex.min.css" />
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.css" integrity="sha384-r/BYDnh2ViiCwqZt5VJVWuADDic3NnnTIEOv4hOh05nSfB6tjWpKmn1kUHOVkMXc" crossorigin="anonymous">
     <%= yield :styles %>
   </head>
 
@@ -21,7 +21,7 @@
     </div>
 
     <%= javascript_include_tag 'application' %>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.10.1/katex.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.js" integrity="sha384-zDIgORxjImEWftZXZpWLs2l57fMX9B3yWFPN5Ecabe211Hm5ZG/OIz2b07DYPUcH" crossorigin="anonymous"></script>
     <%= yield :scripts %>
   </body>
 </html>