Minor typo fix in the README
Minor typo fix in the README

boone/geocoder,TrangPham/geocoder,mdebo/geocoder,FanaHOVA/geocoder,rios1993/geocoder,alexreisner/geocoder,donbobka/geocoder,ankane/geocoder,moofish32/geocoder,AndyDangerous/geocoder,Devetzis/geocoder,brian-ewell/geocoder,aceunreal/geocoder,rdlugosz/geocoder,rayzeller/geocoder,sjaveed/geocoder,tiramizoo/geocoder