Fixed window name typo for chapter 2

Chapter02/Game.cpp

@@ -31,7 +31,7 @@ bool Game::Initialize()
 		return false;
 	}
 	
-	mWindow = SDL_CreateWindow("Game Programming in C++ (Chapter 3)", 100, 100, 1024, 768, 0);
+	mWindow = SDL_CreateWindow("Game Programming in C++ (Chapter 2)", 100, 100, 1024, 768, 0);
 	if (!mWindow)
 	{
 		SDL_Log("Failed to create window: %s", SDL_GetError());