状态通道实践

1 https://ethfans.org/posts/state-channel-for-dummies-part-4

2 https://ethfans.org/posts/counterfactual-for-dummies-part-1

https://docs.connext.network/en/latest/    context介绍；

https://www.learnplasma.org/zh/learn/mvp.html    learn plasma