Updated docs link, updated python docs link, updated setup.py

Updated readthedocs file

Signed-off-by: dherrada <dylan.herrada@adafruit.com>

Re-added pylint install to build.yml

Signed-off-by: dherrada <dylan.herrada@adafruit.com>

Hardcoded Black and REUSE versions

Signed-off-by: dherrada <dylan.herrada@adafruit.com>

Merge pull request adafruit#16 from adafruit/REUSE

Ran pre-commit, added licenses

Merge pull request adafruit#14 from ThomasBurgess2000/master

added font file

Update adafruit_sharpmemorydisplay.py

update default freq

Fixed discord invite link

Merge pull request adafruit#12 from adafruit/black-update

Black reformatting with Python 3 target.

Merge pull request adafruit#11 from adafruit/pylint-update

Ran black, updated to pylint 2.x