fix reference warning in docs test

Author: harryhaller001

src/keggtools/resolver.py

@@ -198,7 +198,7 @@ def get_pathway(self, organism: str, code: str, **kwargs: Any) -> Pathway:
         :param str code: Pathway identify used by KEGG database.
         :param typing.Any kwargs: other arguments to `requests.get`.
         :return: Returns parsed Pathway instance.
-        :rtype: Pathway
+        :rtype: keggtools.models.Pathway
         """
         # TODO: verify org code