Resources are now real

layouts/_default/single.html

@@ -30,6 +30,9 @@
     {{ if .Params.external_url }}
     <p><a href="{{ .Params.external_url }}" target="_blank" class="btn">Visit External Site</a></p>
     {{ end }}
+    {{ if .Params.url_external }}
+    <p><a href="{{ .Params.url_external }}" target="_blank" class="btn">Visit External Site</a></p>
+    {{ end }}
 </article>