The RL example no longer works

[JL24]

You can't run the example for RL in the docs as you get the error:
'NameError: name 'AbstractBattle' is not defined'

It seems that this system was changed at one point and not updated.

If there is a work around please lmk.

[cameronangliss]

Refer to the RL code provided in the examples folder, as this has been made up-to-date. The docs need updating, it's true.