Wikipedia does not provide news outside of the 'In the news' section (it does provide encyclopedic entries on current events, but that's not quite the same thing).
The 'In the news' section lists already existing articles, which must contain references. User generated websites are usually not considered reliable sources for Wikipedia, so Wikinews shouldn't normally be used as a reference in Wikipedia articles.
There is information on the 'In the news' section at: https://en.wikipedia.org/wiki/Wikipedia:In_the_news
The page for nominating and discussing items is at: https://en.wikipedia.org/wiki/Wikipedia:In_the_news/Candidat...
In case you hadn't heard of it before, Wikipedia also has a sister project called Wikinews: https://en.wikinews.org/