Small update to the readme
Small update to the readme

geoffmacd/SDWebImage,smule/SDWebImage,klundberg/SDWebImage,Insfgg99x/SDWebImage,altrooz/SDWebImage,iheartradio/SDWebImage,ruaho/SDWebImage,cochat/SDWebImage,dreampiggy/SDWebImage,awkward/SDWebImage,Frntbac/SDWebImage,dreampiggy/SDWebImage,odyth/SDWebImage,awkward/SDWebImage,zhang-yawei/SDWebImage,buleSky111/SDWebImage,dpettigrew/SDWebImage,dreampiggy/SDWebImage,Kekanto/SDWebImage,amyhametov/SDWebImage,awkward/SDWebImage,rs/SDWebImage,tualatrix/SDWebImage,iosnatarajan/SDWebImage