message: Add healthcheck to k8s doc
diff: @@ -357,6 +357,14 @@ spec:
  name: postgres-secrets
  - secretRef:
  name: backstage-secrets
  + readinessProbe:
  + httpGet:
  + port: 7000
  + path: /healthcheck
  + livenessProbe:
  + httpGet:
  + port: 7000
  + path: /healthcheck
  ```
  For production deployments, the `image` reference will usually be a full URL to
  