docs: multi-language support

[Danielhui]

Pre-Checklist

Note: please complete ALL items in the following checklist.

• I have read through the CONTRIBUTING.md documentation.
• My code has the necessary comments and documentation (if needed).
• I have added relevant tests

Description

Related Issues

New Behavior (screenshots if needed)

[IronCore864]

@Danielhui 首先感谢您的贡献！

用机器翻译软件搞出整体的雏形没有问题，但一定请进行人工的校对和审核，确保用词一致性、风格符合native speaker的习惯。

例：

• review/reviewer在本文中出现了至少3种不同的翻译：审查、审稿人、审阅者
• “变得热情与包容。您应主动确保作者认可。” -- 作为中文母语者，我不知道这句话的含义。

建议您在开始贡献之前，先阅读我们的CONTRIBUTING文档，并在PR里打钩，let the community and the reviewers know that we are on the same page.

关于文档的修改是尤其重要的，因为这影响所有新用户、新贡献者的体验，请一定确保：

• 人工校对机器翻译结果
• 确保用词一致性
• 确保语言风格符合中国人的说话习惯

[daniel-hutao]

Thanks for your contribution! Feel free to check out our new contributor guide. We have quite a few pieces of documentation explaining the basic concepts and how to work on DevStream. Read them in the "Developer Guide" section of the documentation.

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Regarding commit messages, we try our best to follow the conventional commits specification so that it would give other people clear information. We've also got a "TL;DR" version in our documentation; feel free to have a quick glance. Please provide useful information in your commit message; and please do not use duplicated commit messages.

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Another kind reminder that you haven't signed off on your commit(s) yet.

Check out our official doc here to learn how to do this.

Licensing is important to open source projects. It provides some assurances that the software will continue to be available based on the terms that the author(s) desired.

Now that we are part of CNCF, per CNCF's requirement, we kindly require that contributors sign off on commits submitted to our project's repositories. Thanks!