Update pre-commit hooks (except ruff)

Update license specification

remove deprecated ruff rule, workaround RTD theme property inline issue.

update rtd.yml file

Merge pull request #54 from adafruit/use_ruff

update docs config

change to ruff

Merge pull request #53 from FoamyGuy/remove_imp_usage

remove unused block containing deprecated imp module

Merge pull request #52 from jposada202020/adding_displayio_example

example_filename

correcting_example_typo

Adding displayio example

adding_displayio_example

add sphinx configuration to rtd.yaml