fixes - use `Sequence` instead of `Tuple` in type hint - update examples in `README.md`
1.1.2
fixes - format with [OITNB](https://pypi.org/project/oitnb) - restructure submodules to accomodate future database implementations - fix type hint for primary key
1.1.1
update license badge
1.1.0
Added - record deletion method - `table.exists` property
Fixed - import error when attempting to import `typing.get_args` on python older than 3.8