restore 'link to preview' button

website/templates/_make.html

@@ -217,7 +217,8 @@
       <h4>Embed the code into your website</h4>
       <p>Grab the embed code and paste it on your site where you want your TimelineJS to appear (just like a YouTube video).</p>
       <textarea readonly="readonly" style="width: 100%; height: 160px; min-height: 110px; max-height: 300px; resize: none; font-family: Menlo,Monaco,'Courier New',monospace; font-size: 12px;" id="embed_code"><iframe src='http://cdn.knightlab.com/libs/timeline/latest/embed/?source=0Agl_Dv6iEbDadHdKcHlHcTB5bzhvbF9iTWwyMmJHdkE&font=Bevan-PotanoSans&maptype=toner&width=600&height=600' width='600' height='600' frameborder='0'></iframe></textarea><br><br>
-      <p><a href="#preview-embed" data-scroll="true" id="iframe-preview-button" class="btn btn-primary">Preview</a></p>
+      <p><a href="#preview-embed" data-scroll="true" id="iframe-preview-button" class="btn btn-primary">Preview</a> 
+      <a href="#preview-embed" data-scroll="true" id="preview-embed-link" target="_blank" class="btn">Link to Preview</a></p>
     </div>
   </div>