Board Thread:Support Requests - Community Management/@comment-26897006-20150124063535/@comment-7697305-20150124064524

As far as I am aware, there is currently no way to edit that information. It used to be controlled by Special:Promote, but that special page is no longer available as of October 7, 2014. (source)

There is apparently a replacement coming, but few (if any) details about it have been released as of yet.