Document HelmForge chart as a third-party Kubernetes installation option

[mberlofa]

Hi Ghost team,

I maintain charts in the HelmForge ecosystem and wanted to share that Ghost is available as a third-party Helm chart for Kubernetes users:

• Chart documentation: https://helmforge.dev/docs/charts/ghost
• Chart source: https://github.com/helmforgedev/charts/tree/main/charts/ghost
• Helm repository: https://repo.helmforge.dev
• OCI package: oci://ghcr.io/helmforgedev/helm/ghost

Example installation:

helm repo add helmforge https://repo.helmforge.dev
helm repo update
helm install ghost helmforge/ghost

OCI installation:

helm install ghost oci://ghcr.io/helmforgedev/helm/ghost

The chart uses the official Ghost container image and supports common Kubernetes deployment needs, including a bundled HelmForge MySQL subchart or an external MySQL database, content persistence, Ingress, probes, resource settings, scheduling options, and optional S3-compatible backup configuration.

Would you be open to adding this to the Ghost documentation as an unofficial / third-party Kubernetes installation method? This could help self-hosters who already run workloads on Kubernetes discover a maintained Helm-based deployment path, while keeping the ownership clear that the chart is maintained by HelmForge and not by the Ghost upstream project.

If preferred, I can open a small documentation PR with a short section linking to the HelmForge chart.