minor typo fix

Author: Chilipp

docrep/__init__.py

@@ -760,7 +760,7 @@ def get_full_description(self, s, base=None):
 
         This here and the line above is the full description (i.e. the
         combination of the :meth:`get_summary` and the
-        :meth:`get_full_description`) output
+        :meth:`get_extended_summary`) output
 
         Parameters
         ----------