[Feature] [SWCK] Add doc for BanyanDB CRD and Controller

[dashanji]

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

Description

As we already have the BanyanDB CRD and Controller, but there are no docs on how to use it.

Use case

No response

Related issues

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[dashanji]

Would you like to do it? @SzyWilliam

[SzyWilliam]

@dashanji Sure! I'd love to. Please assign it to me.

[dashanji]

Hi @SzyWilliam, the issue has been going on for a while, are you still willing to complete it?