Update configparser docs for lowercasing rename.
diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst
index 911f8dc..50373fc 100644
--- a/Doc/library/configparser.rst
+++ b/Doc/library/configparser.rst
@@ -1,14 +1,20 @@
-
 :mod:`ConfigParser` --- Configuration file parser
 =================================================
 
 .. module:: ConfigParser
+   :synopsis: Old name for the configparser module.
+
+.. module:: configparser
    :synopsis: Configuration file parser.
 .. moduleauthor:: Ken Manheimer <klm@zope.com>
 .. moduleauthor:: Barry Warsaw <bwarsaw@python.org>
 .. moduleauthor:: Eric S. Raymond <esr@thyrsus.com>
 .. sectionauthor:: Christopher G. Petrilli <petrilli@amber.org>
 
+.. note::
+   The :mod:`ConfigParser` module has been renamed to :mod:`configparser` in
+   Python 3.0.  It is importable under both names in Python 2.6 and the rest of
+   the 2.x series.
 
 .. index::
    pair: .ini; file