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Description

As of now, we perform duplicate work to update the configuration specification of Helm charts in both the README of the module and in the website as well.

The suggestion is to simply make the README point to the website, e.g.:
https://github.com/apache/fluss/blob/main/helm/README.md --- points to ---> https://github.com/apache/fluss/blob/main/website/docs/install-deploy/deploying-with-helm.md.

As the README is meant mostly for dev purposes, we should not directly link the docs (built at every PR), but directly link to the file in the repo

Willingness to contribute

• I'm willing to submit a PR!