[XML-SIG] Updated XML HOWTO with DOM coverage

[Andrew M. Kuchling]

I've added more coverage of how to use PyDOM to the XML HOWTO.  The
new material starts at:
	http://www.python.org/doc/howto/xml/DOM.html

As usual, comments are welcome.

-- 
A.M. Kuchling			http://starship.skyport.net/crew/amk/
    "I... I did not intend to hurt you."
    "And what if you did not? Intent and outcome are so rarely coincident."
    -- Dream and Larissa, in SANDMAN #65: "The Kindly Ones:9"