The "/wiki" page:

Display a wiki page.  Example:  /wiki?name=PAGENAME

Query parameters:

   name=NAME        Name of the wiki page to display.  Required.
   nsm              Omit the submenu if present.  (Mnemonic: No SubMenu)
   p                Always show just the wiki page.  For special
                    pages for check-ins, branches, or tags, there will
                    be a redirect to the associated /info page unless
                    this query parameter is present.