Update registration deadline in index.html

Author: Carina6166

index.html

@@ -906,10 +906,16 @@ <h3 style="margin-left:20px">
             <h3 style="margin-left:20px">
               <strong>
                 <span style="font-size:20px">
-                  Registration Deadline: Feb. 1, 2026
+                  Registration Deadline: 
+                  <span style="text-decoration: line-through; color:#777;">
+                    Feb. 1, 2026
                 </span>
+                &nbsp;→&nbsp;
+                    Feb. 11, 2026
+                </span>    
               </strong>
             </h3>
+              
             <h3 style="margin-left:20px">
               <strong>
                 <span style="font-size:20px">