add chinese translation for 01-why-react.md
fix some translation error
fix some translation error
Merge branch 'master' of github.com:rayqian/react

Conflicts:
	docs/docs/01-why-react.zh-CN.md
fix `(`
make translation better
add translation for getting-started.md
change some translation words
Merge pull request #1244 from rayqian/master

add chinese translation support