Assigning your Page to a Category
This is easy, just add this to the bottom of your article:
Where SomeCategory should be replaced by the name of the chosen category.
Please note that an article can belong to mutiple categories, this is not a problem, just list all of them:
After adding your page to any category, it will be automatically listed on the overview page of this category. Category overview pages can be linked to by the prefix Category: in front of the name, like this Category:Editing.
Especially for tutorial pages, several templates exist that make categorizing a page even easier. Just include the template at the bottom of each page:
Please see List of tutorial templates for what templates exist. If one is missing, please add it by copying one of the existing tutorials and modify it, then use it accordingly.