Better explanation of coordinates format in docs for keypoints rcnn  (#1886)
Better explanation of coordinates format in docs for keypoints rcnn  (#1886)

* docs for faster+mask rcnn coords is clearer

* keypoint rcnn coords format is clearer

Co-authored-by: rvirgolireply <23fe6bae6524bf621796ae05fc67959fa3c076a1@users.noreply.github.com>

pytorch/vision,pytorch/vision,pytorch/vision,pytorch/vision,pytorch/vision,pytorch/vision