Update `adafruit_ov5640.OV5640.contrast` value range in docstring#38

ladyada merged 1 commit intoadafruit:mainadafruit/Adafruit_CircuitPython_OV5640:mainfrom

relic-se:contrast-range-docsrelic-se/Adafruit_CircuitPython_OV5640:contrast-range-docsCopy head branch name to clipboard