we have some instructions about using mathjax in our docs.
there are 2 issues with them: a) they require direct editing of wikiconfig.py and it is non-trivial to just add mathjax in your wikiconfig_editme.py (and inherit everything else from the main config)
b) it is unclear what html environment mathjax needs to trigger parsing its markup and rendering the formula. it somehow did not work within a normal moin wiki markup item in some cases. maybe there should be some more words about how to use it after installing.