Breaking changes
* remove `stairval.Notepad`. Use `stairval.notepad.Notepad` and `stairval.notepad.create_notepad()` instead.
What's Changed
* Add `stairval.notepad`, improve tests by ielis in https://github.com/ielis/stairval/pull/2
**Full Changelog**: https://github.com/ielis/stairval/compare/0.1.0...0.2.0