Thread:HTF1234/@comment-43992480-20191107120503/@comment-4834197-20191107121613

You can add categories using either of the following:

If the edit's done on mobile, I'm not exactly sure how to replicate method # 1, but you can probably use method # 2. Do note that not everybody here may even notice particular pages (even via the Article Help sidebar), so it is more preferred that you do this yourself the first time you create an article.
 * 1) Via the "Add category" button on the bottom of the article (next to the "Categories:" mark)
 * 2) While editing the page in Source mode (default in Visual, choose the Source tab when in edit mode), type on the page.