Update README.md for poppler
Update README.md for poppler

stuartf/Hilary,nicolaasmatthijs/Hilary,ExC0d3/Hilary,simong/Hilary,mrvisser/Hilary,ExC0d3/Hilary,simong/Hilary,stuartf/Hilary,timdegroote/Hilary,nicolaasmatthijs/Hilary,Orodan/Hilary,jfederico/Hilary,jfederico/Hilary,Orodan/Hilary,mrvisser/Hilary,timdegroote/Hilary