[css-font-loading] Typo in the IDL of FontFaceSource

[fred-wang]

See https://drafts.csswg.org/css-font-loading/#font-face-source:

  [Exposed=(Window,Worker)
   NoInterfaceObject]
  interface FontFaceSource {
    readonly attribute FontFaceSet fonts;
  };

The two extended attributes should be separated by a comma.

cc @heycam

[mrego]

So this seems just a typo, @fred-wang was trying to fork this repo and provide a PR but it seems the GitHub fork is failing for him.

@tabatkins maybe you can just fix this yourself.

[tabatkins]

Looks like someone already got to it, but didn't tag the issue. ^_^

[fred-wang]

Ok it was 922a43a ; thanks.