Conversion into XML

Submitted by: Luiz Rocha <lsdr@lsdr.net>

Additionally changed:
- changed <samp> to <code>
- removed <pre> from emaples
- restructured example.xml


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@97101 13f79535-47bb-0310-9956-ffa450edef68