Make clear that there are more directives which

are actually not allowed in <VirtualHost> sections.

Submitted by: sehh <sehh@altered.com
PR: 5596


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@84577 13f79535-47bb-0310-9956-ffa450edef68