Update download.sh

for better download speed.

Author: arisliang

tutorials/03-advanced/image_captioning/download.sh

@@ -1,7 +1,7 @@
 mkdir data
 wget http://msvocds.blob.core.windows.net/annotations-1-0-3/captions_train-val2014.zip -P ./data/
-wget http://msvocds.blob.core.windows.net/coco2014/train2014.zip -P ./data/
-wget http://msvocds.blob.core.windows.net/coco2014/val2014.zip -P ./data/
+wget http://images.cocodataset.org/zips/train2014.zip -P ./data/
+wget http://images.cocodataset.org/zips/val2014.zip -P ./data/
 
 unzip ./data/captions_train-val2014.zip -d ./data/
 rm ./data/captions_train-val2014.zip