[livy] Update README to list R
[livy] Update README to list R

cloudera/hue,jounex/hue,lumig242/Hue-Integration-with-CDAP,cloudera/hue,Peddle/hue,todaychi/hue,Peddle/hue,yoer/hue,hdinsight/hue,fangxingli/hue,GitHublong/hue,hdinsight/hue,jjmleiro/hue,ahmed-mahran/hue,lumig242/Hue-Integration-with-CDAP,GitHublong/hue,kawamon/hue,cloudera/hue,lumig242/Hue-Integration-with-CDAP,kawamon/hue,Peddle/hue,kawamon/hue,xiangel/hue,Peddle/hue,lumig242/Hue-Integration-with-CDAP,rahul67/hue,MobinRanjbar/hue,cloudera/hue,xiangel/hue,cloudera/hue,ChenJunor/hue,yoer/hue,pratikmallya/hue,kawamon/hue,fangxingli/hue,vmax-feihu/hue,ahmed-mahran/hue,ahmed-mahran/hue,kawamon/hue,hdinsight/hue,pratikmallya/hue,jounex/hue,kawamon/hue,pratikmallya/hue,MobinRanjbar/hue,jayceyxc/hue,yoer/hue,GitHublong/hue,hdinsight/hue,hdinsight/hue,fangxingli/hue,lumig242/Hue-Integration-with-CDAP,rahul67/hue,ChenJunor/hue,todaychi/hue,vmax-feihu/hue,vmax-feihu/hue,ChenJunor/hue,cloudera/hue,xiangel/hue,Peddle/hue,yoer/hue,ChenJunor/hue,yongshengwang/hue,ChenJunor/hue,kawamon/hue,kawamon/hue,kawamon/hue,rahul67/hue,yongshengwang/hue,vmax-feihu/hue,GitHublong/hue,todaychi/hue,xq262144/hue,yoer/hue,xiangel/hue,lumig242/Hue-Integration-with-CDAP,jjmleiro/hue,MobinRanjbar/hue,jayceyxc/hue,kawamon/hue,fangxingli/hue,cloudera/hue,yoer/hue,kawamon/hue,cloudera/hue,cloudera/hue,kawamon/hue,todaychi/hue,MobinRanjbar/hue,kawamon/hue,hdinsight/hue,MobinRanjbar/hue,jounex/hue,cloudera/hue,todaychi/hue,fangxingli/hue,vmax-feihu/hue,GitHublong/hue,xq262144/hue,cloudera/hue,ChenJunor/hue,GitHublong/hue,vmax-feihu/hue,kawamon/hue,cloudera/hue,cloudera/hue,kawamon/hue,jounex/hue,jjmleiro/hue,xiangel/hue,yoer/hue,yongshengwang/hue,yongshengwang/hue,ahmed-mahran/hue,pratikmallya/hue,ahmed-mahran/hue,rahul67/hue,xq262144/hue,jayceyxc/hue,xq262144/hue,rahul67/hue,vmax-feihu/hue,jjmleiro/hue,GitHublong/hue,jjmleiro/hue,xiangel/hue,fangxingli/hue,cloudera/hue,lumig242/Hue-Integration-with-CDAP,jounex/hue,todaychi/hue,pratikmallya/hue,cloudera/hue,jounex/hue,jayceyxc/hue,xiangel/hue,xq262144/hue,kawamon/hue,rahul67/hue,hdinsight/hue,ChenJunor/hue,yongshengwang/hue,MobinRanjbar/hue,pratikmallya/hue,yongshengwang/hue,yongshengwang/hue,MobinRanjbar/hue,vmax-feihu/hue,pratikmallya/hue,kawamon/hue,ahmed-mahran/hue,yongshengwang/hue,rahul67/hue,xq262144/hue,jjmleiro/hue,jayceyxc/hue,cloudera/hue,Peddle/hue,xq262144/hue,fangxingli/hue,pratikmallya/hue,jounex/hue,jayceyxc/hue,cloudera/hue,todaychi/hue,cloudera/hue,jjmleiro/hue,jjmleiro/hue,GitHublong/hue,jounex/hue,xiangel/hue,ahmed-mahran/hue,jjmleiro/hue,rahul67/hue,xq262144/hue,Peddle/hue,jayceyxc/hue,todaychi/hue,Peddle/hue,yoer/hue,todaychi/hue,lumig242/Hue-Integration-with-CDAP,MobinRanjbar/hue,ahmed-mahran/hue,lumig242/Hue-Integration-with-CDAP,jayceyxc/hue,jayceyxc/hue,ChenJunor/hue,kawamon/hue,xq262144/hue,fangxingli/hue,Peddle/hue,hdinsight/hue