Tell-me-your-secrets

Fixed

- Fixed bug with matching refactoring + prevent bug on missing config key (33)

Added

- Added whitelisted string functionality (31)
- Added dependabot configuration (30)
- Added Python 3.9 to test matrix (28)

Improved

- Improved config print -- now dynamic (11)
- Added new rules from shhgit (17)

Breaking

- Dropped support for Python 3.4 and 3.5 - it was broken before, but now it's explicit

Before semantic versioning.