#24 Add doc on how to exploit the db

Hey ! just played for my needs with the db, here some ideas I want to add on the API pages: request the db to have all the FFDN members: curl -s https://db.ffdn.org/api/v1/isp/?per_page=9999 |jq ".isps[] | select(.is_ffdn_member == true) | .ispformat.name"|sort