Update index.html

Added suggestions to the index.html

index.html

@@ -46,7 +46,7 @@ <h1>Tic Tac Toe</h1>
     <td><input type="checkbox" /></td>
   </tr>
 </table>
-
+Demo text for my suggestion to the index.html
 <h2 hidden>Game over, refresh to play again 🧑‍💻 🤖!</h2>
 
 <script>