Add RelatedArticles to patchdemo

Author: jdlrobson

repository-lists/all.txt

@@ -39,6 +39,7 @@ mediawiki/extensions/Poem w/extensions/Poem
 mediawiki/extensions/Popups w/extensions/Popups
 mediawiki/extensions/ProofreadPage w/extensions/ProofreadPage
 mediawiki/extensions/QuickSurveys w/extensions/QuickSurveys
+mediawiki/extensions/RelatedArticles w/extensions/RelatedArticles
 mediawiki/extensions/Renameuser w/extensions/Renameuser
 mediawiki/extensions/ReplaceText w/extensions/ReplaceText
 mediawiki/extensions/RevisionSlider w/extensions/RevisionSlider