[diff v3.5.0...v4.0.0](https://github.com/rstcheck/rstcheck/compare/v3.5.0...v4.0.0)
- Add inline type annotations
- Add `sphinx` as extra
- Update build process and set up `poetry`
- Add `pre-commit` and `tox` for automated testing, linting and formatting
- Move from travis to github actions
- Activate dependabot
BREAKING CHANGES
- Drop support for python versions prior 3.7