show avatars from github

Author: j143

_src/_includes/themes/apache/partials/_head.html

@@ -49,4 +49,7 @@
 
   <!-- favicons -->
   <link rel="shortcut icon" href="/assets/img/favicon.png">
+  
+  <!-- allow github profile images -->
+  <meta http-equiv="Content-Security-Policy" content="img-src 'self' data: blob: https://avatars.githubusercontent.com/;">
 </head>