Fixed typo in README
Fixed typo in README

andyjeffries/flexirest,andyjeffries/active-rest-client,djpate/active-rest-client,MoKuH/active-rest-client,whichdigital/active-rest-client,MatthieuKopec/active-rest-client,nathanhoel/active-rest-client,chenhang/active-rest-client,chibicode/active-rest-client