update api doc

doc/sphinx-guides/source/api/curation-labels.rst

@@ -4,6 +4,7 @@ Dataset Curation Status API
 When the :ref:`:AllowedCurationLabels <:AllowedCurationLabels>` setting has been used to define Curation Labels, this API can be used to set these labels on draft datasets. 
 Superusers can define which set of labels are allowed for a given datasets in a collection/an individual dataset using the api described in the :doc:`/admin/dataverses-datasets` section.
 The API here can be used by curators/those who have permission to publish the dataset to get/set/change/delete the label currently assigned to a draft dataset.
+If the :ref:`dataverse.api.show-curation-status-to-all` flag is enabled, users who can see the draft dataset version can use the get API call.
 
 This functionality is intended as a mechanism to integrate the Dataverse software with an external curation process/application: it is a way to make the state of a draft dataset, 
 as defined in the external process, visible within Dataverse. These labels have no other effect in Dataverse and are only visible to curators/those with permission to publish the dataset.