info_tfgrid/heroscript/duniayetu/book_collections.md

!!mdbook.export 
    title:'Dunia Yetu' 
    description: 'mdbook about Dunia Yetu'
    name:'duniayetu' 
    summary_url:'https://git.threefold.info/tfgrid/info_tfgrid/src/branch/main/books/duniayetu'
    collections:'collections' 
    production:0 //means we put it in summary