update README.md and README_CN.md

README.md

@@ -88,6 +88,7 @@ Community powers
  - [996.OD](https://github.com/zheolong/996.OD.git) occupational diseases are the forewarning of ICU.
  - [996.Q](https://github.com/alexddhuang/996.Q) A repository to collect mocks, jokes, or gags about 996. 
  - [support.996.ICU](https://github.com/msworkers/support.996.ICU) Microsoft and GitHub Workers Support 996.ICU
+ - [996.Blockchain](https://github.com/996BC/996.Blockchain) Blockchain for the 996 evidence
 
 Where are the issues?
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README_CN.md

@@ -97,6 +97,8 @@
   - [support.996.ICU](https://github.com/msworkers/support.996.ICU) 微软与GitHub员工自发组织 实名签名 支持 996.ICU
   
   - [699cn](https://github.com/996-699/996.699) 一键存证微信小程序，免安装永久免费，完全公益性质。一键采集员工当前经纬度和打卡时间存证到服务器，未来目标是期望更多志愿者加入团队，建设成为基于分布式账本技术的存证平台，只要地球上还有程序员，证据就永远存在。
+
+  - [996.Blockchain](https://github.com/996BC/996.Blockchain) 一个存储加班证据摘要的区块链项目
  
 Issues 去哪了？
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