Merge pull request #8 from KaiYuan-Guo/master

Complete translate "Introduction" to Chinese (Simplified) and fixes your error.
Use Chinese colon, correcting typo
partial translated to portuguese 

i'll finish soon
Merge pull request #9 from RegiusK/patch-1

partial translated to portuguese
Add bootstrap version comment
Some Portuguese characters need to be in a quoted string when used in yaml header
Make the language translation hint more clear
Add attribution for Portuguese translations