CI failed to detect leftover placeholder link

[ijackson]

In #1947 and #1958 I botched, failing to update the `url=`` from the template

I have fixed it now, but I notice that the CI passed. I think it would have been nice if the CI had failed, pointing out my mistake.

Presumably a simialr issue could arise with the other fields. (Maybe the template and example would need to have some of the example values changed to more-invalid ones, to do this thoroughly.)