fix spacing

demo/demo/main.cpp

@@ -114,10 +114,12 @@ int main(int argc, const char* argv[]) {
 		audio->play("click.ogg", false);
 		app.change_state("game");
 	});
+
 	menu->add("rollball", [&app, &audio]() {
 		audio->play("click.ogg", false);
 		app.change_state("rollball");
 	});
+
 	menu->add("quit", [&app, &audio]() {
 		audio->play("click.ogg", false);
 		app.running(false);