Expose mdast config, better source/children check
Expose mdast config, better source/children check

FormidableLabs/spectacle,waywaaard/spectacle,survivejs/react-for-awesome-people,luisrudge/microservices-com-service-fabric,lowsky/spectacle,oliviertassinari/SplitMeBord,rektide/webpush-away-deck,oliviertassinari/SplitMeBord,waywaaard/spectacle,rektide/webpush-away-deck,FormidableLabs/spectacle,tikotzky/spectacle,survivejs/react-for-awesome-people,tikotzky/spectacle,hartmamt/builder-talk,luisrudge/microservices-com-service-fabric,hartmamt/builder-talk,lowsky/spectacle