Update index.html

index.html

@@ -447,6 +447,7 @@ updateCountdown();
     <button class="tab-button" onclick="openTab('mke')">Events</button>
     <button class="tab-button" onclick="openTab('exchange-rate')">Tỷ Giá</button>
     <button class="tab-button" onclick="openTab('Hours')">Hours</button>   
+    <button class="tab-button" onclick="openTab('PD')">pattern detection</button>
   </div>
   </div>