Automatic helm doc generation

[Isan-Rivkin]

• Known helm-docs plugin to generate docs:
• We can automate the doc generation in an action or something but at first we can just pre-commit hook. The hook can be added by each dev. We can then add an action to simply check if values.yaml has changed while README.md didn't fail and request to run helm-docs locally and commit again.

Flow:

1. Dev changes locally values.yaml
2. Dev runs locally make helm-docs > docs are generated
3. Commit and push
4. CI verifies if values.yaml changed then README.md changes.
5. Merge