* Fix big when saving/loading q-net alone
* Rename variables to match SB3-contrib
* Update docker image
* Set min version for tensorboard
* Add SB3-Contrib to doc
* Update DQN
* Apply suggestions from code review
Co-authored-by: Adam Gleave <adam@gleave.me>
* Update wording
Co-authored-by: Adam Gleave <adam@gleave.me>