Comment Re:Easy start to documentation: write man pages (Score 1) 92
Might I also suggest a look at Restructured Text as another alternative. Comes from the Python community. Raw text is a little easier to read IMHO and can also output to HTML, PS, PDF and LaTeX. Either way you go, one of these formats is nice in that you will easily be able to convert to most any format you'll need to publish your documentation in.