Added the sixth Button to the GUI

src/main/java/game/StartTicTacToeGame.java

@@ -74,6 +74,12 @@ public class StartTicTacToeGame implements ActionListener{
 		button5.setBounds(350, 250, 100,100);
 		button5.addActionListener(this);
 		gui.Frame.add(button5);
+		
+		button6 = new JButton();
+		button6.setBackground(Color.white);
+		button6.setBounds(500, 250, 100,100);
+		button6.addActionListener(this);
+		gui.Frame.add(button6);
 	}