Update index.html

Update Game Over Message

Author: rwells489

index.html

@@ -47,7 +47,7 @@ <h1>Tic Tac Toe</h1>
   </tr>
 </table>
 
-<h2 hidden>Game over, refresh to play again 🧑‍💻 🤖!</h2>
+<h2 hidden>Game over! Refresh to play again. 🧑‍💻 🤖</h2>
 
 <script>
   // Initialization