style(schematron): uncomment codes validation; comment out iso639-3 url
style(schematron): uncomment codes validation; comment out iso639-3 url

SAA-SDT/EAD-Revision,SAA-SDT/EAD3,informaticmonad/EAD3,SAA-SDT/EAD-Revision,informaticmonad/EAD3,SAA-SDT/EAD3