Feature/i18n

[Bardreamaster]

Type of PR

• 🐞 Bug fix (non-breaking change which fixes an issue)
• 🧙‍♂️ New feature (adding a feature following a feature-request issue)
• 🔨 Improvement (improving an existing feature - includes style: and perf:commits)
• 🏗️ Refactor (rewriting existing code without any feature change)
• ✍️ (!) This change is or requires a documentation update

Description

Add Chinese documents for all version 2 docs.

Fix some format/spell error in current docs.

Changes

Contextual Changes:

• provide bullet list of overview to each context.

Additional Screenshots

Provide screenshot if necessary.

Additional information/context

If relevant, add any information or context that would be useful to evaluate this PR

To checkout the preview locally, run this command in /documentation folder: npm run start -- --locale zh

then you can fell free check the new docs.

While, there are still a problem needs your help:

there's no valid route for default page in http://127.0.0.1:3000/zh/ if you visit this URL directly.

but if you click the button on top 文档, contents would be available with the same URL.

And after fix the problem above, I may add some guides for i18n if someone want to add other language support.

It has been quiet a long time, hope for your reply.

[Bardreamaster]

@Kinostrome if you have time to check my PR, thanks so much