Added M4 to boot.py file
@@ -2,9 +2,9 @@ import board
import digitalio
import storage
-# For Gemma M0, Trinket M0, Metro M0 Express, ItsyBitsy M0 Express
+# For Gemma M0, Trinket M0, Metro M0/M4 Express, ItsyBitsy M0/M4 Express
switch = digitalio.DigitalInOut(board.D2)
-# switch = digitalio.DigitalInOut(board.D5) # For Feather M0 Express
+# switch = digitalio.DigitalInOut(board.D5) # For Feather M0/M4 Express
# switch = digitalio.DigitalInOut(board.D7) # For Circuit Playground Express
switch.direction = digitalio.Direction.INPUT
switch.pull = digitalio.Pull.UP
