Improve callout with example

Author: sarahsanders-docker

content/manuals/subscription/scale.md

@@ -37,7 +37,12 @@ usage](../admin/organization/manage-products.md#view-docker-product-usage).
 
 > [!WARNING]
 >
-> Docker Build Cloud and Testcontainers minutes do not rollover. If you do not use the allocated minutes from your subscription plan, you can't roll them over to the next month or subscription period.
+> The number of Docker Build Cloud and Testcontainers minutes included in your
+subscription do not rollover. Additional minutes expire at the end of your
+subscription period (monthly or annually). For example, if you have an annual
+Docker Team subscription with 500 included minutes, and purchase 500 additional
+minutes, only the 500 additional minutes rollover until the end of your annual
+subscription period.
 
 ## Add Docker Build Cloud build minutes