Fix typo. Pointed out by Finn Ellis on docs@.
diff --git a/Doc/library/userdict.rst b/Doc/library/userdict.rst
index 3a19ac1..0585bda 100644
--- a/Doc/library/userdict.rst
+++ b/Doc/library/userdict.rst
@@ -128,7 +128,7 @@
A real Python list object used to store the contents of the :class:`UserList`
class.
-**Subclassing requirements:** Subclasses of :class:`UserList` are expect to
+**Subclassing requirements:** Subclasses of :class:`UserList` are expected to
offer a constructor which can be called with either no arguments or one
argument. List operations which return a new sequence attempt to create an
instance of the actual implementation class. To do so, it assumes that the