Visdrone dataset

Hello,

I see you added the visdrone dataset Visdrone dataset by tmyapple · Pull Request #1267 · dmlc/gluon-cv · GitHub
and from the comment, there might be some doc available
Job PR-1267-6 is done.
Docs are uploaded to http://gluon-vision-staging.s3-website-us-west-2.amazonaws.com/PR-1267/6/index.html

I would be interested to test but I am missing guidance…