From GTALUG

How to use this

* sectionname

points to MediaWiki:sectionname, whose contents are the name which appears

** itemurl|itemname
   (1)     (2)

1. MediaWiki:itemurl, whose contents contain the link identity.
2. Same as sectionname, points to MediWiki:itemname, whose contents are the name which appears.

Alternately, you can simply use:

** Page Name|Display Name

http://meta.wikimedia.org/wiki/Help:Navigation_bar

The sidebar

• navigation
  • mainpage|mainpage
  • smap-url|smap
  • recentchanges-url|recentchanges
  • randompage-url|randompage
  • admin-url|admin

• community
  • portal-url|portal
  • mailing-lists|mailing-lists
  • currentevents-url|currentevents
  • groups-url|groups
  • classifieds-url|classifieds

• editsidebar-title
  • editsidebar-url|editsidebar