Create ch2-2.md

認真學習
中文翻譯更新

Unless otherwise noted, the author of this book wrote the example scripts that follow.

>`除非有特別提出來，否則此書作者皆依照上述所講規範撰寫腳本。`
Merge pull request #13 from Rslw/patch-1

中文翻譯新增