[doc] rewrite uninstall page in zh

[windsonsea]

What this PR does / why we need it:

Add the uninstallation page in zh-cn

Does this PR introduce a user-facing change?

YES

[windsonsea]

cc @zhaosimon

[zhaosimon]

This is updated hwameistor uninstallation procedures. Thanks! 发件人: Michael ***@***.***> 答复: hwameistor/hwameistor ***@***.***> 日期: 2023年3月16日 星期四 下午6:14 收件人: hwameistor/hwameistor ***@***.***> 抄送: Simon Zhao ***@***.***>, Mention ***@***.***> 主题: Re: [hwameistor/hwameistor] [doc] rewrite uninstall page in zh (PR #697) cc @zhaosimon<https://github.com/zhaosimon> — Reply to this email directly, view it on GitHub<#697 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AIZMPTHMOJGBXUHS6HXRG43W4LRXXANCNFSM6AAAAAAV47WRPY>. You are receiving this because you were mentioned.Message ID: ***@***.***>

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