add demo links

demo.html

@@ -86,7 +86,7 @@
                 </ul>
               </div>
               <div class="text-center">
-                <button style="background:#193179;" class="demo-CTA border-0 mb-5">開始製作</button>
+                <button style="background:#193179;" class="demo-CTA border-0 mb-5" set-lan="html:try_it_out" onclick="direct()">開始製作</button>
               </div>
             </div>
           </div>
@@ -106,7 +106,7 @@
                 </ul>
               </div>
               <div class="text-center">
-                <button style="background:#193179;" class="demo-CTA border-0 mb-5">開始製作</button>
+                <button style="background:#193179;" class="demo-CTA border-0 mb-5" set-lan="html:try_it_out" onclick="direct()">開始製作</button>
               </div>
             </div>
           </div>