Translation for rails_commerce project to Simplified Chinese (100% completion)

I have completely translated rails_commerce project from English to Simplified Chinese.

rails_commerce project: https://github.com/rails-commerce/rails_commerce

My contribution:
https://github.com/rails-commerce/rails_commerce/pull/10/commits/b15d48335e881b26f139db6d84aacb2751862865

My pull request has been accepted and merged:
https://github.com/rails-commerce/rails_commerce/pull/10

To prove it's the work I have done. I've changed my github profile, linking the url to my steemit account, e.g. https://steemit.com/@yuxid.