updated README with new features
updated README with new features

libin/battleschool,spencergibb/battleschool,wchrisjohnson/battleschool,hkim823/battleschool,dochang/battleschool,spencergibb/battleschool,wchrisjohnson/battleschool,hkim823/battleschool,dochang/battleschool,libin/battleschool