Update data-box-disk-limits.md

add missing space

Author: jborsecnik

articles/databox/data-box-disk-limits.md

@@ -39,7 +39,7 @@ For the latest information on Azure storage service limits and best practices fo
 
 ## Data copy and upload caveats
 
-- Do not copy data directly into the disks. Copy data to pre-created *BlockBlob*,*PageBlob*, and *AzureFile* folders.
+- Do not copy data directly into the disks. Copy data to pre-created *BlockBlob*, *PageBlob*, and *AzureFile* folders.
 - A folder under the *BlockBlob* and *PageBlob* is a container. For instance, containers are created as *BlockBlob/container* and *PageBlob/container*.
 - If a folder has the same name as an existing container, the folder's contents are merged with the container's contents. Files or blobs that aren't already in the cloud are added to the container. If a file or blob has the same name as a file or blob that's already in the container, the existing file or blob is overwritten.
 - Every file written into *BlockBlob* and *PageBlob* shares is uploaded as a block blob and page blob respectively.