Add alt for bottom logo img

Tim-Zhang · Tim-Zhang · commit b51821830c22 · 2016-08-06T18:46:08.000+08:00
diff --git a/html/commons/footer.handlebars b/html/commons/footer.handlebars
@@ -72,6 +72,6 @@
     </ul>
   </li>
 </ul>
-<img class="logo" src="/assets/logo_icon.svg">
+<img class="logo" src="/assets/logo_icon.svg" alt="dark logo">
 <div class="copyright">© 2016. HyperHQ Inc All Rights Reserved</div>
 <script src="/app.js"></script>
