update README for v1.0
update README for v1.0

duitang/waterfall,PanSusie/waterfall,PegasusWang/waterfall,visaxin/waterfall,visaxin/waterfall,WeBest/waterfall-1,PanSusie/waterfall,balibell/waterfall,balibell/waterfall,WeBest/waterfall-1,duitang/waterfall,PegasusWang/waterfall