updated Terra-i citation & fixed Imazon citation
updated Terra-i citation & fixed Imazon citation

Updated citation for Terra-i
Added "citation for data as displayed on GFW" for Terra-i
Added missing space to Imazon citation
cciciarelli8/gfw,KarlaRenschler/gfw,codeminery/gfw,KarlaRenschler/gfw,codeminery/gfw,Vizzuality/gfw,codeminery/gfw,apercas/gfw,apercas/gfw,codeminery/gfw,KarlaRenschler/gfw,cciciarelli8/gfw,KarlaRenschler/gfw,apercas/gfw,Vizzuality/gfw,apercas/gfw