Add new short url

app/elements/buddy-finder/buddy-finder.html

@@ -67,7 +67,7 @@
             Open Snapdrop on other devices
             <br> to send files.
             <paper-tooltip offset="14">
-                short url: dropc.at
+                short url: yg.gl
             </paper-tooltip>
         </div>
         <personal-avatar class="me"></personal-avatar>