first review
Merge remote-tracking branch 'upstream/master' into develop

* upstream/master: (37 commits)
  简单修正几处翻译
  玩家添加review
  review 高级操作符
  add review member
  Update 21_Protocols.md
  Update 21_Protocols.md
  Update README.md
  Update README.md
  认领review章节
  Update README.md
  Update README.md
  认领构造过程
  修改 review 目标为 语句
  change review name
  add review name
  Update README.md
  Update README.md
  Update 18_Type_Casting.md
  Update README.md
  Update 19_Nested_Types.md
  ...
review the basics
modify patterns by review
review basic
Merge pull request #80 from KohPoll/develop

review