a list of otherFormat->docbook convertors go here
http://wiki.docbook.org/topic/ConvertOtherFormatsToDocBook
http://www.tldp.org/HOWTO/WikiText-HOWTO/index.html
This guy invent his own tags, similar to moin, e.g
==How Does It Work?|how-does-it-work==
but I do not see a point for this.
why just use some mainline wiki format, though it might take a bit longer to
write, but there are wiki viewer and editor there which bring lots of convinience.