What's Changed
* Use Notion URL's as object references. by jheddings in https://github.com/jheddings/notional/pull/117
* Correct class method in `RichTextObject` by jheddings in https://github.com/jheddings/notional/pull/130
* Updated several dependencies.
**Full Changelog**: https://github.com/jheddings/notional/compare/v0.7.1...v0.7.3