Some small fixes to the windows docs; mostly add XP and improve a few

titles.

Submitted by: =?ISO-8859-1?Q?Iikka_Meril=E4inen?= <Iikka.Merilainen@pato.vaala.fi>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@96957 13f79535-47bb-0310-9956-ffa450edef68