docs: add json example
docs: add json example

ameihm0912/MozDef,mozilla/MozDef,triplekill/MozDef,mpurzynski/MozDef,netantho/MozDef,mpurzynski/MozDef,gsssrao/MozDef,gdestuynder/MozDef,mozilla/MozDef,DarkPrince304/MozDef,DarkPrince304/MozDef,jeffbryner/MozDef,mpurzynski/MozDef,Phrozyn/MozDef,mozilla/MozDef,triplekill/MozDef,serbyy/MozDef,serbyy/MozDef,526avijitgupta/MozDef,ameihm0912/MozDef,triplekill/MozDef,gsssrao/MozDef,gsssrao/MozDef,ameihm0912/MozDef,jeffbryner/MozDef,netantho/MozDef,mpurzynski/MozDef,jeffbryner/MozDef,jvehent/MozDef,jvehent/MozDef,abhijithch/MozDef,eXcomm/MozDef,DarkPrince304/MozDef,eXcomm/MozDef,Phrozyn/MozDef,eXcomm/MozDef,gdestuynder/MozDef,netantho/MozDef,serbyy/MozDef,triplekill/MozDef,gdestuynder/MozDef,gdestuynder/MozDef,Phrozyn/MozDef,abhijithch/MozDef,ameihm0912/MozDef,mozilla/MozDef,526avijitgupta/MozDef,Phrozyn/MozDef,serbyy/MozDef,526avijitgupta/MozDef,jvehent/MozDef,gsssrao/MozDef,jeffbryner/MozDef,DarkPrince304/MozDef,526avijitgupta/MozDef,jvehent/MozDef,eXcomm/MozDef,abhijithch/MozDef,abhijithch/MozDef,netantho/MozDef