Adafruit-circuitpython-pio-uart

What's Changed
* adafruit_pio_uart.receive() should return None on no bytes received by todbot in https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART/pull/3

New Contributors
* todbot made their first contribution in https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART/pull/3

**Full Changelog**: https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART/compare/1.0.1...1.0.2

**Full Changelog**: https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART/compare/1.0.0...1.0.1

What's Changed
* Fix lint issues and add license so CI builds. by kbsriram in https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART/pull/2

New Contributors
* kbsriram made their first contribution in https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART/pull/2

**Full Changelog**: https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART/commits/1.0.0