Release v0.9.0

Update package description

Release v0.7.3

Release v0.7.2

Release v0.7.1

Release v0.7.0 (springload#78)

- Make the editor toolbar sticky (requires a polyfill, documented in README).
- Add support for `placeholder` attribute.

- Improve "active block" rendering and disabled state.

- Fix missing vertical spacing between button rows.
- Fix missing pointer cursor on tooltip button.

- Remove `Element.closest` polyfill from main lib.

Ignore .github folder for npm package

Release v0.5.0

Release v0.4.1