v0.2.7
- fix a bug in MAPolicy: `buffer.rew = Batch()` doesn't change `buffer.rew` (thanks mypy) - polish examples/box2d/bipedal_hardcore_sac.py - several docs update - format setup.py and bump version to 0.2.7
- fix a bug in MAPolicy: `buffer.rew = Batch()` doesn't change `buffer.rew` (thanks mypy) - polish examples/box2d/bipedal_hardcore_sac.py - several docs update - format setup.py and bump version to 0.2.7