Duplicate text in switch component documentation API

[Epic-Deno]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

2.2.8

Environment

vue version: vue 3.0.1 , browser version: chrome 98.0.4758.80（正式版本）

Reproduction link

https://2x.antdv.com/components/switch-cn

Steps to reproduce

API文档

What is expected?

API文档只显示：一个unCheckedChildren 非选中时的内容

What is actually happening?

现在API文档只显示两个unCheckedChildren 非选中时的内容

[github-actions]

Hello @Epic-Deno. We totally like your proposal/feedback, welcome to send us a Pull Request for it. Please send your Pull Request to proper branch, fill the Pull Request Template here, provide changelog/TypeScript/documentation/test cases if needed and make sure CI passed, we will review it soon. We appreciate your effort in advance and looking forward to your contribution!

你好 @Epic-Deno，我们完全同意你的提议/反馈，欢迎直接在此仓库创建一个 Pull Request 来解决这个问题。请将 Pull Request 发到正确的分支，务必填写 Pull Request 内的预设模板，提供改动所需相应的 changelog、TypeScript 定义、测试用例、文档等，并确保 CI 通过，我们会尽快进行 Review，提前感谢和期待您的贡献。

[xiongmao86]

Hello there, I have tried to find the right documents location to fix error, but the docs in next branch seem to be OK. When I check out 2.x, the submodule v2doc I think documents of switch component reside in, doesn't seem to be fetchable.

[xiongmao86]

Forget to say, I have checked the 2.2.8 version, v2-doc directory is also missing, cannot git submodule update.

[tangjinzhou]

OK，so sorry. I forget v2 doc is private repo

[xiongmao86]

We all make mistakes. Thank you for replying.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.