chore(deps-dev): bump sphinx-autobuild from 0.7.1 to 2020.9.1
chore(deps-dev): bump sphinx-autobuild from 0.7.1 to 2020.9.1

Bumps [sphinx-autobuild](https://github.com/GaretJax/sphinx_autobuild) from 0.7.1 to 2020.9.1.
- [Release notes](https://github.com/GaretJax/sphinx_autobuild/releases)
- [Commits](https://github.com/GaretJax/sphinx_autobuild/commits)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
DandyDev/slack-machine