Fix
* **deps:** Update dependency jinja2 to v3.1.3 ([94](https://github.com/34j/jinja2-env/issues/94)) ([`b0d0ac4`](https://github.com/34j/jinja2-env/commit/b0d0ac4a5ff0a81123239f6354c77ff3b41ae1b5))
Documentation
* **readme:** Note extension class name ([`974d2ac`](https://github.com/34j/jinja2-env/commit/974d2acda8d108a3aed40175864ccef6d21659a8))