make description of method "one" more precise

Author: dkrenn

src/sage/combinat/k_regular_sequence.py

@@ -1440,8 +1440,8 @@ def one(self):
         r"""
         Return the one element of this :class:`kRegularSequenceSpace`,
         i.e. the unique neutral element for `*` and also
-        the embedding of the unique neutral element for `*` in the
-        coefficient ring.
+        the embedding of the one of the coefficient ring into
+        this :class:`kRegularSequenceSpace`.
 
         EXAMPLES::
 

src/sage/combinat/recognizable_series.py

@@ -1994,8 +1994,8 @@ def _zero_(self):
     def one(self):
         r"""
         Return the one element of this :class:`RecognizableSeriesSpace`,
-        i.e. the embedding of the unique neutral element for `*` in the
-        coefficient ring.
+        i.e. the embedding of the one of the coefficient ring into
+        this :class:`RecognizableSeriesSpace`.
 
         EXAMPLES::