[enh] add link to repo on app page

templates/apps.html

@@ -10,7 +10,7 @@
                     <th>App</th>
                 </thead>
                 <tr v-for="(app, index) in apps" :id="app.id">
-                    <td>{{app.name}}</td>
+                    <td>{{app.name}} <a target="_blank" v-bind:href="app.url">↪</a></td>
                 </tr>
             </table>
         </div>