singleraeh-0.2.0: CHANGELOG.md

## 0.2.0 (2024-05-25)
* add more singled `Natural` operations
* add `Sing` for automatic singling
* add `Demotable` for automatic demoting
* add `SUnit`

## 0.1.0 (2024-05-21)
Initial release.

* new home for my assorted singletons