feat: 更新帮助手册

[guonafu]

Description: 中铁信科定制帮助手册

Log: 中铁信科定制帮助手册

Task: https://pms.uniontech.com/task-view-214361.html

Please do not send pull requests to the linuxdeepin/*

see https://github.com/linuxdeepin/developer-center/wiki/Contribution-Guidelines-for-Developers

Thanks!

[github-actions]

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0 out of 2 committers have signed the CLA.
❌ @alvarosamudio
❌ @guonafu
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