add skip-screenshot file to examples/gpio/#215

FoamyGuy wants to merge 1 commit intoadafruit:mainadafruit/Adafruit_CircuitPython_ESP32SPI:mainfrom

FoamyGuy:skip_screenshot_fileFoamyGuy/Adafruit_CircuitPython_ESP32SPI:skip_screenshot_fileCopy head branch name to clipboard