embargoed files are also downloadable from a preview URL

Also, add links to where it's defined (and for restricted).

Author: pdurbin

doc/sphinx-guides/source/user/dataset-management.rst

@@ -704,7 +704,7 @@ If you have a Contributor role (can edit metadata, upload files, and edit files,
 Preview URL to Review Unpublished Dataset
 =========================================
 
-Creating a Preview URL for a draft version of your dataset allows you to share your dataset (for viewing and downloading of files, including restricted files) before it is published to a wide group of individuals who may not have a user account on the Dataverse installation. Anyone you send the Preview URL to will not have to log into the Dataverse installation to view the unpublished dataset. Once a dataset has been published you may create new General Preview URLs for subsequent draft versions, but the Anonymous Preview URL will no longer be available.
+Creating a Preview URL for a draft version of your dataset allows you to share your dataset (for viewing and downloading of files, including :ref:`restricted <restricted-files>` and :ref:`embargoed <embargoes>` files) before it is published to a wide group of individuals who may not have a user account on the Dataverse installation. Anyone you send the Preview URL to will not have to log into the Dataverse installation to view the unpublished dataset. Once a dataset has been published you may create new General Preview URLs for subsequent draft versions, but the Anonymous Preview URL will no longer be available.
 
 **Note:** To create a Preview URL, you must have the *ManageDatasetPermissions* permission for your draft dataset, usually given by the :ref:`roles <permissions>` *Curator* or *Administrator*.
 
@@ -726,6 +726,8 @@ To disable a Preview URL and to revoke access, follow the same steps as above un
 
 Note that only one Preview URL (normal or with anonymized access) can be configured per dataset at a time. 
 
+.. _embargoes:
+
 Embargoes
 =========