Add note around Cloud NAT

This adds a note around leveraging Google Cloud
NAT if customers want to route to an application
on the internet just to try things out.

Explictly leaving out instructions to set it up
here as customers may have various NAT scenarios.
We can definitely expand on this if needed.

Author: puneetsarna

content/nginxaas-google/getting-started/create-deployment/deploy-console.md

@@ -270,6 +270,14 @@ Each listening port configured on NGINX requires its own PSC network endpoint gr
 
 1. To test your deployment, go to the IP address created in [Set up connectivity to your deployment]({{< ref "/nginxaas-google/getting-started/create-deployment/deploy-console.md#set-up-connectivity-to-your-deployment" >}}) using your favorite web browser.
 
+{{< call-out "note" >}}
+
+The deployment is privately deployed in your subnet. If you want to route traffic to an application over the public internet, consider setting up [Cloud NAT](https://docs.cloud.google.com/nat/docs/overview).
+
+{{< /call-out >}}
+
+
+
 ## What's next
 
 [Manage your NGINXaaS users]({{< ref "/nginxaas-google/getting-started/manage-users-organizations.md" >}})