Hi,

Is there a way with commonmark reader to parse smallcaps as real SmallCaps instead of Spans ?

 ```

>echo '[foo]{.smallcaps}' | pandoc -f commonmark_x -t native

[ Para [ Span ( "" , [ "smallcaps" ] , [] ) [ Str "foo" ] ]]

```

I'd like to have the same behaviour as markdown reader:

```

> echo '[foo]{.smallcaps}' | pandoc -f markdown -t native
[ Para [ SmallCaps [ Str "foo" ] ] ]

```

Thanks!