Fix "Literal block expected; none found." warning.

Author: Mark van Lent

docs/shipping/freezing.rst

@@ -75,7 +75,7 @@ Prerequisite is to install :ref:`Python on Windows <install-windows>`.
 
 1. Download and install http://sourceforge.net/projects/py2exe/files/py2exe/
 
-2. Write :file:`setup.py` (`List of configuration options <http://www.py2exe.org/index.cgi/ListOfOptions>`_)::
+2. Write :file:`setup.py` (`List of configuration options <http://www.py2exe.org/index.cgi/ListOfOptions>`_):
 
 .. code-block:: python