support url update

updated from google group to zendesk request url

website/templates/_developers.html

@@ -3,7 +3,7 @@
   <h2>About the Project</h2>
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-      <p>This project is hosted on <a href="https://github.com/NUKnightLab/TimelineJS" target="_blank">GitHub</a>, the largest code host in the world. We encourage you to contribute to the project and we value your feedback. You can report bugs and discuss features on the <a href="https://github.com/NUKnightLab/TimelineJS/issues" target="_blank">GitHub issues page</a>, or ask a question on our <a href="https://groups.google.com/forum/#!forum/verite-timeline" target="_blank">Google Group</a></p>
+      <p>This project is hosted on <a href="https://github.com/NUKnightLab/TimelineJS" target="_blank">GitHub</a>, the largest code host in the world. We encourage you to contribute to the project and we value your feedback. You can report bugs and discuss features on the <a href="https://github.com/NUKnightLab/TimelineJS/issues" target="_blank">GitHub issues page</a>, or <a href="https://knightlab.zendesk.com/anonymous_requests/new" target="_blank">ask a question</a></p>
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