Upgrade nuxeo-platform-importer Marketplace package (Bulk document importer)

https://connect.nuxeo.com/nuxeo/site/marketplace/package/nuxeo-platform-importer?version=1.2.0

+ Update description in Marketplace: The field "Description" should only contain a one sentence description (1 or 2 lines) to be displayed in the packages listing.
Currently it contains the text that should be in "More about this package" area
=> Pls update the description + the MOre about this package field