Update root url

Author: randomairborne

templates/base.hbs

@@ -17,7 +17,7 @@
     <meta property="og:type" content="website" />
     <meta
       property="og:image"
-      content="{{ root_url }}/icon-small.png?cb={{ "/icon-small.png"|bust_dir(bd) }}"
+      content="{{ root_url }}/icon-medium.png?cb={{ "/icon-medium.png"|bust_dir(bd) }}"
     />
     <meta property="og:url" content="{{ root_url }}/" />
     <meta property="og:site_name" content="mcping - Minecraft Server Tester" />