Automated update by Adabot (adafruit/adabot@8a8115b)

Updating https://github.com/adafruit/Adafruit_CircuitPython_AHTx0 to 1.0.19 from 1.0.18:
  > Merge pull request adafruit/Adafruit_CircuitPython_AHTx0#16 from adafruit/aht20_calibration
  > "fix rtd theme "

Updating https://github.com/adafruit/Adafruit_CircuitPython_Bundle/circuitpython_library_list.md to NA from NA:
  > Updated download stats for the libraries

Author: adafruit-adabot