add paint in index.html

index.html

@@ -57,6 +57,8 @@
             <a class="btn btn-info" href="/sans-cheat/" style="text-shadow: rgb(133,133,130) 1px 2px 3px;"><span
                     class="glyphicon glyphicon-wrench" aria-hidden="true"></span>&nbsp;&nbsp;sans</a>
             <a class="btn btn-info" href="/random/" style="text-shadow: rgb(133,133,130) 1px 2px 3px;">random</a>
+            <a class="btn btn-info" href="/paint/" style="text-shadow: rgb(133,133,130) 1px 2px 3px;"><span
+                class="glyphicon glyphicon-pencil" aria-hidden="true"></span>&nbsp;&nbsp;绘画板</a>
         </p>
         <h3>> 小工具</h3>
         <p>