doc update
diff --git a/documentation/tools.rst b/documentation/tools.rst
index 6431430..45e7aef 100644
--- a/documentation/tools.rst
+++ b/documentation/tools.rst
@@ -14,9 +14,9 @@
.. function:: comports()
- :return: an iterable that yields :class:`ListPortInfo` objects.
+ :return: a list containing :class:`ListPortInfo` objects.
- The function returns an iterable that yields :obj:`ListPortInfo` objects.
+ The function returns a list of :obj:`ListPortInfo` objects.
Items are returned in no particular order. It may make sense to sort the
items. Also note that the reported strings are different across platforms