Fix
* Typo in error message ([`d496e83`](https://github.com/kalekundert/stack_alert/commit/d496e8344fdf0a3e752b8d0154ce970746ba25f7))
Documentation
* Fix typo ([`af7aa96`](https://github.com/kalekundert/stack_alert/commit/af7aa966053b8fc6eecba2417b1bbe6e8d227178))
* Fix typo ([`5fbcc30`](https://github.com/kalekundert/stack_alert/commit/5fbcc30ad8106ffe87c8b65fe021df1059d8e24b))