document the memoryview object a little
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index aa60be9..252ef02 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -665,9 +665,8 @@
.. function:: memoryview(obj)
- Return a "memory view" object created from the given argument.
-
- XXX: To be documented.
+ Return a "memory view" object created from the given argument. See
+ :ref:`typememoryview` for more information.
.. function:: min(iterable[, args...], *[, key])