added another todo

CoffeeCode/display.cpp

@@ -341,6 +341,7 @@ void displaySetLang(display_lang_t lang) {
 void displayRefresh(void) {
 	if (coffeeMode == MODE_STATE) {
 		switch (coffeeState) { //coffeeGetState()
+		//TODO show the temperature when the machine is ready to brew
 		case STATE_IDLE:
 			displayPrintLn(0, "CoffeePi", true);
 			displayPrintLn(1, displayGetString(str_ready), true);