Updated JoyWing to use the correct Seesaw syntax from Seesaw library update.
To use in CircuitPython, download the .zip file and copy its contents to the lib folder on the CIRCUITPY drive. Or, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Addafruit_CircuitPython_Bundle).
Read the [docs](https://circuitpython.readthedocs.io/projects/featherwing/en/latest/) for info on how to use it.