fix: remove redundant/unused image tags (#1451)

* fix: remove redundant/unused image tags

* fix: adjust comment length

* fix: Update content/nim/deploy/kubernetes/deploy-using-helm.md

Co-authored-by: Jon Torre <78599298+JTorreG@users.noreply.github.com>

---------

Co-authored-by: Jon Torre <78599298+JTorreG@users.noreply.github.com>

Author: balakoteswar

content/nim/deploy/kubernetes/deploy-using-helm.md

@@ -136,6 +136,11 @@ https://docs.nginx.com/nginx-instance-manager/deploy/kubernetes/helm-config-sett
 {{< /call-out >}}
 
 ```yaml
+# When openshift.enabled is set, the chart deploys to OpenShift.
+# If it’s unset or left as-is, it defaults to a Kubernetes deployment.
+# openshift:
+#   enabled: false
+
 nmsClickhouse:
   mode: internal # options: internal, external, disabled
 
@@ -149,34 +154,27 @@ imagePullSecrets:
 apigw:
   image:
     repository: private-registry.nginx.com/nms/apigw
-    tag: <version>
 core:
   image:
     repository: private-registry.nginx.com/nms/core
-    tag: <version>
 dpm:
   image:
     repository: private-registry.nginx.com/nms/dpm
-    tag: <version>
 ingestion:
   image:
     repository: private-registry.nginx.com/nms/ingestion
-    tag: <version>
 integrations:
   image:
     repository: private-registry.nginx.com/nms/integrations
-    tag: <version>
 secmon:
   image:
     repository: private-registry.nginx.com/nms/secmon
-    tag: <version>
 utility:
   image:
     repository: private-registry.nginx.com/nms/utility
-    tag: <version>
 ```
 
-These values are required when pulling images from the NGINX private registry. The chart doesn't auto-resolve image tags. Set each `tag:` value to match the NGINX Instance Manager version you want to install. Refer to the Helm chart table for version details.
+The values required to pull images from the NGINX private registry are now automatically resolved, including image tags. Each image’s `tag:` is set by default to the latest NGINX Instance Manager version. See the [Helm chart table in the chart installation section]({{< ref "/nim/deploy/kubernetes/deploy-using-helm.md#install-the-chart" >}}) for version details.
 
 Use the file with the `-f values.yaml` flag when installing the chart.