*<nowiki>{{stub}}</nowiki> which marks a page as being a stub and lists it in the [[Category:Stub]] page
*<nowiki>{{cleanup}}</nowiki> which marks a page´s layout as requiring attention.
*<nowiki>{{Copyedit}}</nowiki> which marks a page's spelling or grammar as needing improvement.
You can use [http://www.jtidy.de/jtidy/ JTidy] to convert HTML snippets to Wiki syntax.