Fix some typos. Make some clarifications in mod_usertrack.html (and

put the directives in alphabetical order).

Submitted by by: WWW server manager <webadm@info.cam.ac.uk>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@77220 13f79535-47bb-0310-9956-ffa450edef68