As documented in Wikipedia:Wikimedia sister projects#Wikinews:

Links to pages on the Wikinews site:

• Box format
  • {{Wikinews|SomeArticleTitle}} – Creates box with link to article SomeArticleTitle.
  • {{Wikinews category|SomeCategoryTitle}} – Creates box with link to category SomeCategoryTitle.
• To link in-line with other text, create an interwiki link in the format: [[Wikinews:SomeArticleTitle|reference to the Wikinews article]].

Template	What it makes	Where it goes
{{Wikinews}} Edit Talk Links	Wikinews has related news: insert article name here	{{Wikinews|insert article name here}} Placed at bottom of article (typically in External links) Uses parameter (i.e. insert article name here) for a manual link.
{{Wikinews category}} Edit Talk Links	Wikinews has news related to: Insert category name here	{{Wikinews category|Insert category name here}} Bottom of article (typically in External links).