Pollish up chinese translation (intro2jl)

[inkydragon]

intro-to-julia/

• [ ] 01.新手入门
• [ ] 02.字符串
• [ ] 03.数据结构
• [ ] 04.循环
• [ ] 05.条件判断
• [ ] 06.函数
• [ ] 07.包（Packages）
• [ ] 08.绘图
• [ ] 09.Julia很快
• [ ] 10.多重派发
• [ ] 10.1多重派发
• [ ] 11.基本线性代数

[inkydragon]

will open a new branch based on #63