I would like to add seo friendly stuff to the header like:
<link rel="alternate" hreflang="es" href="http://www.example.com/" />
<link rel="alternate" hreflang="en" href="http://en.example.com/" />
I can't find a way to have an extra output that can generate this. If I would use a filter, my standard switcher would also change.
Any idea how to do this?