Use helm-docs to automatically generate Helm docs

[lucacome]

Proposed changes

Problem: It's hard to keep the README up-to-date and it's a manual process

Solution: Use norwoodj/helm-docs to automatically generate the docs from the values.yaml file

Closes #2044

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

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please add a brief note that summarizes the change.

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