Fix board display

src/main.rs

@@ -10,6 +10,10 @@ fn display(board: TicTacToe) {
             board.board[row * 3 + 1],
             board.board[row * 3 + 2]
         );
+        if row == 0 || row == 1 {
+            println!("---+---+---");
+        }
+        
     }
 }