Corrections needed in kubernetes.md

[malini]

Support request

Topic The *.values.yaml file locations are incorrect in the docs/installation/kubernetes.md file. For example, it says examples/keycloak.values.yaml, but it should be docs/examples/helm/keycloak.values.yaml

Question I've attached the patch to fix it, could you accept it? I don't have permissions to create branches in your repo. I've tested these myself as I was installing it, and it works. Thanks!

kubernetes-doc-fix.patch