add dracer.io

Author: nalbam

views/index.ejs

@@ -23,6 +23,7 @@
   </div>
   <div class="lb-title">
     <a href="/timer" class="btn-link">Timer</a>
+    <a href="https://dracer.io" class="btn-link">Board</a>
   </div>
 </body>