Make sure we capture http requests as well as https

Author: RayOffiah

src/css/external-link-icon.css

@@ -1,11 +1,13 @@
-.doc a[href^="https://"]::after {
+.doc a[href^="https://"]::after,
+.doc a[href^="http://"]::after {
   font-family: "Font Awesome Regular", serif;
   content: "\f35d";
   font-size: inherit;
   color: inherit;
   display: none;
 }
 
-.doc a[href^="https://"] > .svg-inline--fa {
+.doc a[href^="https://"] > .svg-inline--fa,
+.doc a[href^="http://"] > .svg-inline--fa {
   margin-left: 0.25em;
 }