fix: Remove remaining old-style call-out (#1008)

This call-out was missed in a recent fix: multiple instances existed in
the same file.

Author: ADubhlaoich

content/nginx-one/k8s/add-ngf-helm.md

@@ -108,7 +108,11 @@ helm install ngf .  \
 
 {{%tab name="NGINX Plus"%}}
 
-{{< note >}} If applicable, replace the F5 Container registry `private-registry.nginx.com` with your internal registry for your NGINX Plus image, and replace `nginx-plus-registry-secret` with your Secret name containing the registry credentials. If your NGINX Plus JWT Secret has a different name than the default `nplus-license`, then define that name using the `nginx.usage.secretName` flag. {{< /note >}}
+{{< call-out "note" >}} 
+
+If applicable, replace the F5 Container registry `private-registry.nginx.com` with your internal registry for your NGINX Plus image, and replace `nginx-plus-registry-secret` with your Secret name containing the registry credentials. If your NGINX Plus JWT Secret has a different name than the default `nplus-license`, then define that name using the `nginx.usage.secretName` flag. 
+
+{{< /call-out >}}
 
 To install the chart into the **nginx-gateway** namespace, run the following command: