translate the English documentation into Chinese
#  Aim
Aims to translate the English documentation into Chinese, making it easier for Chinese developers to read and reducing the difficulty of accessing the documentation for them.

zh_translate:
@chenglu



Hi @liteli1987gmail, thanks for opening this PR and starting the Chinese translation effort! 

Is there a corresponding github issue for this translation? We recommend opening an issue (following [this template](https://github.com/huggingface/transformers/blob/f4e4b4d0e2dc248433e808594f7595292037d891/.github/ISSUE_TEMPLATE/i18n.md#L4)) so that others can easily track progress and contribute. 

As we see here, translating all of the pages at once creates a very large diff that isn't realistic for people to review. Could you instead have each of the pages listed in a checklist on the github issue, and then open a separate PR for each of those pages? <|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md) are likely to be ignored.