[Suggestion]Update menu structure

[claireyuw]

Note: This repository is ONLY used to solve issues related to DOCS.
For other issues, please move to other repositories.

Is there anything that's missing or inappropriate in the docs? Please describe.
Describe what the problem is, and where is it. Ex. I think it's better to add/change [...] in [Install Milvus].

Describe your suggestion
A clear and concise description of what you want to change or add.

Additional reference
Provide any other reference docs or websites about your request.