Fix reference to Bitmap in fontio.Glyph docs.
Fix reference to Bitmap in fontio.Glyph docs.

adafruit/micropython,adafruit/circuitpython,adafruit/micropython,adafruit/circuitpython,adafruit/circuitpython,adafruit/micropython,adafruit/micropython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/micropython