Board Thread:Support Requests - Getting Technical/@comment-4059089-20140602174750/@comment-856287-20140602180134

Put the categories in tags. These tags mean "Only interpret this code as a part of the page when this template is included somewhere." So, when you see the template page itself, the categories don't apply. When you transclude the template somewhere, they do apply.

There are also tags, which mean "Interpret this code as a part of this page, but not a part of any page it is included on."

I also added the documentation template. The documentation page is used to put the template itself into a category. In this case, I put it in "General Wiki Templates."

Edit: I guess I'm slow :P