In the search box, type in the name that you want the new article to have.
Make sure to press "Go", not "Search".
At the top of the results page, click on the red link that says "Create this page."
On the next page, start typing the contents of your new article in the edit field.
When you have a good start to your article and you want to save it, scroll to the bottom of the editing page. Type in a summary of the changes or edits that you have made and click "Show preview".
If you are satisfied with the way the article looks, click "Save Page."
And the new article is ready for others to view and contribute to.