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Wiki [http://www.mediawiki.org/wiki/Help:Formatting formatting/markup] is very straightforward, though and all you need to do is mimic the current entries since formatting is standardized.
If programs or faculty have been overlooked—which is assuredly the case—you are encouraged to add them, even if you are not a member of that department. Also, information will date rapidly, so by all means help keep things up to date.