diff --git a/index.html b/index.html
index f0986d9..482c0dc 100644
--- a/index.html
+++ b/index.html
@@ -407,7 +407,7 @@
             <col>
             <col>
             <col>
-          </colgroup>  
+          </colgroup>
           <tbody>
           <tr>
             <td>KEY/BUTTON</td>
@@ -961,5 +961,16 @@ <h3>
   developersPopdown.classList.toggle('open');
 }; */
     </script>
+    <script type="text/javascript">
+      var Tawk_API=Tawk_API||{}, Tawk_LoadStart=new Date();
+      (function(){
+      var s1=document.createElement("script"),s0=document.getElementsByTagName("script")[0];
+      s1.async=true;
+      s1.src='https://embed.tawk.to/5d81b523c22bdd393bb65c8b/default';
+      s1.charset='UTF-8';
+      s1.setAttribute('crossorigin','*');
+      s0.parentNode.insertBefore(s1,s0);
+      })();
+    </script>
   </body>
 </html>