For an intermediate choice, I would recommend AsciiDoc [http://asciidoc.org/ http://asciidoc.org/]. I currently use it for some of the more complicated pages on

For an intermediate choice, I would recommend AsciiDoc [http://asciidoc.org/ http://asciidoc.org/]. I currently use it for some of the more complicated pages on my company's GitHub wiki, and am very satisfied with it. For an example of its usage and look, here [http://asciidoc.org/INSTALL.txt http://asciidoc.org/INSTALL.txt] is the source from which this [http://asciidoc.org/INSTALL.html http://asciidoc.org/INSTALL.html] page was rendered.