modify README
modify README

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