modify README
modify README

nbei/CLRS,hexinatgithub/CLRS-1,hunterzhao/CLRS,b-deng/CLRS,gmeer/CLRS,Jingru/CLRS,hexinatgithub/CLRS-1,gzc/CLRS,gmeer/CLRS,feng1o/CLRS,Jingru/CLRS,feng1o/CLRS,feng1o/CLRS,hexinatgithub/CLRS-1,nbei/CLRS,semsevens/CLRS,Soyn/CLRS,semsevens/CLRS,Soyn/CLRS,b-deng/CLRS,gmeer/CLRS,Wangyao14cyy/CLRS,hunterzhao/CLRS,Wangyao14cyy/CLRS,gzc/CLRS,semsevens/CLRS,nbei/CLRS,Wangyao14cyy/CLRS,gzc/CLRS,Soyn/CLRS,b-deng/CLRS,Jingru/CLRS,hunterzhao/CLRS