Template:Decade anime television series category/doc

Creates a category of the form "YYY0s anime television series debuts", where YYYY is a 4-digit decade.

e.g.
 * Category:1960s anime television series debuts ✅
 * Category:2020s anime television series debuts ✅

It is not for use on other types of categories, e.g.


 * Category:2001 anime television series debuts ❌
 * Category:1980s television series debuts ❌

Usage
No parameters needed

Errors
If the template is used on an invalid page, an error message is generated and the page is categorised in:
 * Category: (population: )

Errors include:


 * The page is not in the category namespace
 * The page's title does not take the form "YYY0s anime television series debuts"