[Feature] [DSS-Workspace] New help manual and novice guide

[yuankang134]

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• [X] I had searched in the issues and found no similar feature requirement.

Problem Description

New help manual and novice guide (新增帮助手册和新手指引)

Description

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Use case

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solutions

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Anything else

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Are you willing to submit a PR?

• [ ] Yes I am willing to submit a PR!