Translations:Help:Namespaces/26/en

The     namespace contains categories, dynamic lists of other pages. To facilitate this, linking directly to a category page does not output an inline link, but instead includes the page into the associated category page. So the code       :Help  causes a category link to appear at the bottom of the page (at the bottom in the box marked ""). Clicking on that link takes you to the category page, where this page is visible in the category list.