How do I create categories in Discourse?

[JammyDodger]

Just to round this off, we have a guide on this:

Create a category in Discourse

In this short how-to guide, you will learn how to create a category in Discourse. Categories are meant to hold a collection of topics that have similar subject matter. They include an abundance of configuration options you won’t find with the lighter-weight tagging feature. By default, category creation is limited to admin users. Moderators can be given the ability to create categories by enabling the moderators manage categories and groups site setting. There are 2 ways to start the category …