docs: Incorporates changes from version v1.0.0-beta.2-11-g2b280bb
[Full Changelog](https://github.com/ory/keto/compare/v1.0.0-beta.2...HEAD)
+**Fixed bugs:**
+
+- Upgrade from \< 1.0.0-beta Hydra migration commands fail [\#23](https://github.com/ory/keto/issues/23)
+
**Closed issues:**
- Role setup not working [\#21](https://github.com/ory/keto/issues/21)
**Merged pull requests:**
+- cmd: Resolves an issue with the hydra migrate command [\#24](https://github.com/ory/keto/pull/24) ([arekkas](https://github.com/arekkas))
- warden: Use roles in warden decision [\#22](https://github.com/ory/keto/pull/22) ([arekkas](https://github.com/arekkas))
- cmd: Improves usage of metrics middleware [\#18](https://github.com/ory/keto/pull/18) ([arekkas](https://github.com/arekkas))
