fixing small README typo
fixing small README typo

civisanalytics/lhm,soundcloud/lhm,sj26/lhm,nathanhoel/lhm,nathanhoel/lhm,Shopify/lhm,Shopify/lhm,timeplayinc/lhm,tdeo/lhm,tdeo/lhm,soundcloud/lhm,timeplayinc/lhm,civisanalytics/lhm,sj26/lhm