* **env:** include the rule applied in observation metadata ([19](https://github.com/mathy/mathy_envs/issues/19)) ([080be16](https://github.com/mathy/mathy_envs/commit/080be162524e902fc51ca6a49d2fe92cd4814582))
* **gym:** info returned was always {} when stepping ([16](https://github.com/mathy/mathy_envs/issues/16)) ([5f6a539](https://github.com/mathy/mathy_envs/commit/5f6a53944b02d8982c39a4c5ed7eab13967a0fa2))