A big thank you to thomas-touhey for stepping forward to write expanded documentation, including background information & how to sections.
What's Changed
* punctuate by jepler in https://github.com/jepler/leapseconddata/pull/17
* Transition to pyproject.toml by jepler in https://github.com/jepler/leapseconddata/pull/19
* fix pypi project name, ow by jepler in https://github.com/jepler/leapseconddata/pull/20
* Update & document data sources by jepler in https://github.com/jepler/leapseconddata/pull/21
* Improve coverage & create InvalidContentError by jepler in https://github.com/jepler/leapseconddata/pull/23
* Add more complete documentation by thomas-touhey in https://github.com/jepler/leapseconddata/pull/25
* fix date in Python code to match output in docs by jepler in https://github.com/jepler/leapseconddata/pull/26
* test & doc: Check that the doc examples' output matches by jepler in https://github.com/jepler/leapseconddata/pull/27
* More doc improvements by jepler in https://github.com/jepler/leapseconddata/pull/28
New Contributors
* thomas-touhey made their first contribution in https://github.com/jepler/leapseconddata/pull/25
**Full Changelog**: https://github.com/jepler/leapseconddata/compare/4.0.0...4.1.0