Update peps/pep-0750.rst

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>

Author: davepeck

peps/pep-0750.rst

@@ -164,7 +164,8 @@ Template strings evaluate to an instance of a new type, ``<<TBD>>.Template``:
         def values(self) -> tuple[object, ...]:
             """
             Return a tuple of the `value` attributes of each Interpolation 
-            in the template. This can be an empty tuple.
+            in the template.
+            This will be an empty tuple if there are no interpolations.
             """
             ...