Update readme.md

To point out that this is for the combiner board only.

Author: DustinWatts

case/ESP32_TFT_Combiner_Case/readme.md

@@ -1,5 +1,7 @@
 # FreeTouchDeck Case
 
+**Pay attention! This case is for the combiner board. For the ESP32 TouchDown board, check this link: https://github.com/DustinWatts/esp32-touchdown/tree/main/Case**
+
 ![](freetouchdeck_case1.jpg)
 
 You can print the case that will house both The ILI9488 + TFT screen and you ESP32 in a nice case. This housing is made with the ESP32 TFT Combiner PCB in mind, but will also work if you made your FreeTouchDeck on a prototyping board.