Update index.html

In contact us section after the user submits the form successfully, they see an alert box with the message "Email sent successfully! but the form is not reset. I have modified the code so that the form will be reset, providing a better user experience.

index.html

@@ -999,6 +999,7 @@ <h4>Reach Out To Us</h4>
           return;
         }
         sendEmail(email);
+        event.target.reset();
       });
 
       function sendEmail(email) {
@@ -1436,4 +1437,4 @@ <h4>Reach Out To Us</h4>
 
 
 </div>
-<!-- New bubble background end -->
+<!-- New bubble background end -->