link to "What are the allowed search fields?" issue #2558

doc/sphinx-guides/source/api/search.rst

@@ -24,7 +24,7 @@ Parameters
 ===============  =======  ===========
 Name             Type     Description
 ===============  =======  ===========
-q                string   The search term or terms. Using "title:data" will search only the "title" field. "*" can be used as a wildcard either alone or adjacent to a term (i.e. "bird*"). For example, https://demo.dataverse.org/api/search?q=title:data
+q                string   The search term or terms. Using "title:data" will search only the "title" field. "*" can be used as a wildcard either alone or adjacent to a term (i.e. "bird*"). For example, https://demo.dataverse.org/api/search?q=title:data . For a list of fields to search, please see https://github.com/IQSS/dataverse/issues/2558 (for now).
 type             string   Can be either "dataverse", "dataset", or "file". Multiple "type" parameters can be used to include multiple types (i.e. ``type=dataset&type=file``). If omitted, all types will be returned.  For example, https://demo.dataverse.org/api/search?q=*&type=dataset
 subtree          string   The identifier of the dataverse to which the search should be narrowed. The subtree of this dataverse and all its children will be searched.  Multiple "subtree" parameters can be used to include multiple Dataverses. For example, https://demo.dataverse.org/api/search?q=data&subtree=birds&subtree=cats .
 sort             string   The sort field. Supported values include "name" and "date". See example under "order".