The pages you are just viewing ;)
The guide contains documentation about the Munin software.
It is written using reStructuredText .
If you have a GitHub account, you can even edit the pages online and send a pull request to contribute your work to the official Munin repository.
Plugin documentation is included in each plugin, written using the POD  style format
The command line utility munindoc can be used to display the
info pages about the plugins. Call
munindoc buddyinfo to get the
documentation for plugin
Have a look at the munindoc instruction page in our Trac wiki and edit or add the pod section in the plugins code file accordingly.
Finally send a patch or a pull request on github to help us improve the plugins documentation.
The plugin documentation is also included in the Munin Gallery.
See our Wiki page for instructions how to contribute also example images for the gallery.
Unix Manual Pages¶
The manual pages are included in, and generated from, the man pages in the Munin Guide.
Pod is a simple-to-use markup language used for writing documentation for Perl, Perl programs, and Perl modules. (And Munin plugins)
See the perlpod Manual for help on the syntax.
The reStructuredText (frequently abbreviated as reST) project is part of the Python programming language Docutils project of the Python Doc-SIG (Documentation Special Interest Group). Source Wikipedia: http://en.wikipedia.org/wiki/ReStructuredText
See the reSTructuredText Primer for help on the syntax.