refactoring: changed spelling for startGame function in Program

src/main/java/pacmanGame/Program.java

@@ -13,10 +13,10 @@ public class Program {
 	
 	public static void main(String[] args) {
 		Program instance = new Program();
-		instance.StartGame();
+		instance.startGame();
 	}
 	
-	public void StartGame() {
+	public void startGame() {
 
 		CreateAndShowGUI();
 		gameManager = new GameManager();