Writing Documentation

Hello, I wanted to post some documentation for the rpmreader module I just released, but I would like to do it in the usual "PHP" way (i.e. in the format used by the PHP manual). I seem to see that it uses docbook format, which is great because I have written a fair amount of docbook stuff. Could anyone point me to information on the templates/style sheets/scripts/etc. that I would need to use to make proper documentation for this module so it can appear either in the PHP documentation or at least in the same format as the PHP documentation? I was able to publish the module, but I feel bad not providing any real documentation for it. Any help would be greatly appreciated.