Update index.html

Author: STICKnoLOGIC

index.html

@@ -68,7 +68,7 @@ <h2>Check SubDomain Availability</h2>
             </div>
             </div>
             <div>
-                <div id="result-card" class="hiddens result-card">
+                <div id="result-card" class="hidden result-card">
                         <div class="user-infos">
                             <img id="user-avatar" class="user-avatar" alt="user-avatar" src="http://github.com/wdhdev.png?size=64">
                             <div style="display:flex;flex-direction:column;width:100%">