Merge pull request #430 from larsmans/buffer-doc

typo in buffer protocol docs

docs/src/userguide/buffer.rst

@@ -93,7 +93,7 @@ It contains a pointer to the actual buffer in memory,
 as well as metadata about the shape of the array and the strides
 (step sizes to get from one element or row to the next).
 Its ``shape`` and ``strides`` members are pointers
-that must be point to arrays of ``Py_ssize_t[ndim]``.
+that must point to arrays of type and size ``Py_ssize_t[ndim]``.
 These arrays have to stay alive as long as any buffer views the data,
 so we store them on the ``Matrix`` object as members.