Fix datasets for aws and get_coco.sh (#3788)

* merge master

* Update get_coco.sh

data/scripts/get_coco.sh

@@ -8,14 +8,14 @@
 #     /yolov5
 
 # Download/unzip labels
-d='../' # unzip directory
+d='../datasets' # unzip directory
 url=https://github.com/ultralytics/yolov5/releases/download/v1.0/
 f='coco2017labels.zip' # or 'coco2017labels-segments.zip', 68 MB
 echo 'Downloading' $url$f ' ...'
 curl -L $url$f -o $f && unzip -q $f -d $d && rm $f & # download, unzip, remove in background
 
 # Download/unzip images
-d='../coco/images' # unzip directory
+d='../datasets/coco/images' # unzip directory
 url=http://images.cocodataset.org/zips/
 f1='train2017.zip' # 19G, 118k images
 f2='val2017.zip'   # 1G, 5k images