Corrected an incorrect self-reference.
diff --git a/Doc/library/logging.rst b/Doc/library/logging.rst
index e9675c1..42b1a05 100644
--- a/Doc/library/logging.rst
+++ b/Doc/library/logging.rst
@@ -464,7 +464,6 @@
 
 The :class:`NullHandler` class was not present in previous versions, but is now
 included, so that it need not be defined in library code.
-See :ref:`library-config` for more information.