Thread:Support/About MediaWiki:Mwe-upwiz-license-cc-by-sa-3.0/ms

"Please change the source URL to http://creativecommons.org/licenses/by-sa/3.0/deed. if possible... If Creative Commons does not have a translation available, please point it to http://creativecommons.org/licenses/by-sa/3.0/" - how exactly do I do this? I assume '$2' refers to the source URL, and I'm supposed to add 'deed. ' right after $2, right?