Fixed broken link to mscoco.org
Fixed broken link to mscoco.org

Thanks for the good work!
jch1/models,jiaphuan/models,jiaphuan/models,jch1/models,xcyan/models,alexgorban/models,sshleifer/object_detection_kitti,tombstone/models,xcyan/models,jiaphuan/models,cshallue/models,cshallue/models,jch1/models,cshallue/models,jazcollins/models,zbigniewwojna/text-rcnn,sshleifer/object_detection_kitti,jazcollins/models,xcyan/models,tombstone/models,sshleifer/object_detection_kitti,xcyan/models,tombstone/models,derekjchow/models,sshleifer/object_detection_kitti,jazcollins/models,jch1/models,jiaphuan/models,tombstone/models,tombstone/models,derekjchow/models,alexgorban/models,jazcollins/models,alexgorban/models,jazcollins/models,jiaphuan/models,alexgorban/models,sshleifer/object_detection_kitti,derekjchow/models,jch1/models,sshleifer/object_detection_kitti,jazcollins/models,cshallue/models,cshallue/models,derekjchow/models,xcyan/models,jch1/models,xcyan/models,derekjchow/models,jiaphuan/models,tombstone/models,alexgorban/models