Changed Link to HTTPS (#60)
Changed Link to HTTPS (#60)

Summary:
Changed Link to HTTPS
Pull Request resolved: https://github.com/facebookresearch/detectron2/pull/60

Differential Revision: D17908421

Pulled By: ppwwyyxx

fbshipit-source-id: 6cba7efee1b41d8769bcbf436fb1f093891cd353

facebookresearch/detectron2,facebookresearch/detectron2,facebookresearch/detectron2