correct one and zero list values

the list values for ONE and ZERO are swapped from what is described in the Adafruit_irremote.py library. This error causes the receiver to get the one-s compliment of the expected data.

Author: bradanlane

Circuit_Playground_Express_IR_Treasure_Hunt/CPX_Treasure/code.py

@@ -20,8 +20,8 @@
 
 # Create an encoder that will take numbers and turn them into IR pulses
 encoder = adafruit_irremote.GenericTransmit(header=[9500, 4500],
-                                            one=[550, 550],
-                                            zero=[550, 1700],
+                                            one=[550, 1700],
+                                            zero=[550, 550],
                                             trail=0)
 
 while True: