Extend "processing" message

app/views/asciicasts/_player.html.erb

@@ -7,9 +7,14 @@
 
 <div class="player"></div>
 
-<p class="processing-info" style="display: none">
-  This recording is being pre-processed at the moment. It will open automatically in a few seconds.
-</p>
+<div class="processing-info" style="display: none">
+  <p>
+    This recording is being pre-processed at the moment. It will open automatically in a few seconds.
+  </p>
+  <p>
+    Feel free to contact <a href="mailto:support@asciinema.org">support@asciinema.org</a> if it takes longer.
+  </p>
+</div>
 
 <script>
   $(function() {