fix box_iou_batch import

bump version from `2.0.0` to `2.0.1`

Merge pull request #25 from roboflow/feature/final-touches-before-2.0…

….0-release

final touches before 2.0.0 release

bump `trackers` version from `2.0.0rc1` to `2.0.0rc2` and `supervisio…

…n` version from `0.26.0rc5` to `0.26.0rc6`

Update README.md

Update README.md