fix links


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1564054 13f79535-47bb-0310-9956-ffa450edef68
activate chm.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1564055 13f79535-47bb-0310-9956-ffa450edef68