add sphinx configuration to rtd.yaml

Signed-off-by: foamyguy <foamyguy@gmail.com>

Merge pull request #17 from FoamyGuy/remove_longint_req

Support non-longint builds

remove deprecated get_html_theme_path() call

Signed-off-by: foamyguy <foamyguy@gmail.com>

Merge pull request #15 from FoamyGuy/fix_readme

fix circup instruction

Merge pull request #9 from markkamp/measurement_quality

Measurement quality

Merge pull request #9 from markkamp/measurement_quality

Measurement quality

Merge pull request #14 from adafruit/docs_req_fixes

unpin sphinx and add sphinx-rtd-theme to docs reqs

Merge pull request #13 from adafruit/fix_rtd_theme

fix rtd theme

Merge pull request #10 from adafruit/dev/fix-pylint-jquery

Update .pylintrc, fix jQuery for docs

Merge pull request #8 from adafruit/stemma_i2c

Added commented out board.STEMMA_I2C with explanation