Fixed inconsistencies in readme
Fixed inconsistencies in readme

chasemgray/angular-growl-2,JanStevens/angular-growl-2,diosney/angular-growl-2,vmpl/angular-growl-2,chasemgray/angular-growl-2,waysay/angular-growl-2,eHealthAfrica/angular-growl-2,JanStevens/angular-growl-2,waysay/angular-growl-2,vmpl/angular-growl-2,clamstew/angular-growl-2,ehealthafrica-ci/angular-growl-2,eborned/angular-growl-2,eborned/angular-growl-2,clamstew/angular-growl-2