Create version 3.13 beta (#446)

source/app/web/statics/index.html

@@ -187,7 +187,7 @@
     <script src="/.js/vue.min.js"></script>
     <script src="/.js/vue.prism.min.js"></script>
     <script src="/.js/clipboard.min.js"></script>
-    <script src="/.js/app.placeholder.js?v=3.11"></script>
+    <script src="/.js/app.placeholder.js?v=3.13"></script>
     <script src="/.js/app.js?v=3.11"></script>
   </body>
 </html>