Kubernetes deployment guide mentions nginx instead of caddy

[theMadness]

As per title, in docs/deployment/kubernetes.md the documentation speaks of nginx but the helm charts are all focusing on caddy, could that be a mistake?

[dunglas]

It's because we haven't updated the docs according to the new recipe... Any help welcome.

[tysoncung]

I can help update the Kubernetes deployment guide to reflect the Caddy configuration used in the Helm charts. I'll review the Helm chart implementation and update docs/deployment/kubernetes.md accordingly.