updated hub and surrounding pages

Author: twooley

articles/storage/index.yml

@@ -28,7 +28,7 @@ highlightedContent:
       itemType: how-to-guide
       url: /azure/storage/common/storage-account-create?toc=%2fazure%2fstorage%2fblobs%2ftoc.json
     - title: Learn about data redundancy
-      itemType: how-to-guide
+      itemType: concept
       url: /azure/storage/common/storage-redundancy?toc=%2fazure%2fstorage%2fblobs%2ftoc.json    
     - title: Transfer data to Azure
       itemType: concept