info_tfgrid/heroscript/legal/book_collections.md

!!mdbook.export 
    title:'Legal'
    description:'Legal book of ThreeFold'
    name:'legal' 
    summary_url:'https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/books/legal'
    collections:'legal, companies, tfgrid3' 
    production:0 //means we put it in summary