Add overview.markdown for quick_start.
Merge branch 'feature/newdocs' of github.com:icattlecoder/docs.qiniu.com into feature/newdocs
Merge branch 'feature/newdocs' of github.com:icattlecoder/docs.qiniu.com into feature/newdocs
添加Move操作文档。
Merge pull request #12 from BluntBlade/feature/newdocs

Feature/newdocs