Update CHANGELOG.md when committing notable changes.
Items should start with verbs like 'added', 'removed', 'fixed', 'improved', 'changed', etc.
- Increment version number. Stick to 'zero-ver', as breaking changes are still possible.
- Update CHANGELOG.md: change
## [Unreleased]to version + date - Update
project.version=in pyproject.toml.