Computing permalink URLs to non-article files

Hi, I have this structure:

content/
    my-section/
        foo.md
        files/
            foo.yaml

I want to show a permalink to foo.yaml from foo.md, such as http://example.com/my-section/files/foo.yaml.

I’m looking for a shortcode like ref and relref that can generate a permalink URL. (It looks like ref/relref only works with content pages and not files.)

I don’t think there is any built-in shortcode for what you need, but you should check out Page Resources.
You’ll find it makes it very easy to get the .Permalink of a resource from the page’s template or from within a custom shortcode.

But {{.Permalink}} is not available to the content page?