Update multiple licenses (#866)

* Update for multiple licenses

* Apply suggestions from code review

Author: mjang

content/solutions/about-subscription-licenses.md

@@ -14,6 +14,10 @@ We’re updating NGINX Plus to align with F5’s entitlement and visibility poli
 
 Starting with NGINX Plus R33, all **NGINX Plus instances require a valid JSON Web Token (JWT) license**. This license is tied to your subscription (not individual instances) and is used to validate your subscription and automatically send usage reports to F5's licensing endpoint (`product.connect.nginx.com`), as required by your subscription agreement. In offline environments, usage reporting is [routed through NGINX Instance Manager]({{< ref "nim/disconnected/report-usage-disconnected-deployment.md" >}}).
 
+If you have multiple subscriptions, you’ll also have multiple JWT licenses. You can assign each NGINX Plus instance to the license you prefer. NGINX combines usage reporting across all licensed instances.
+
+This feature is available in NGINX Instance Manager 2.20 and later.
+
 ### Important changes
 
 ##### NGINX Plus won't start if: