Fixed description

Author: flang-msft

articles/azure-cache-for-redis/cache-redis-modules.md

@@ -1,6 +1,6 @@
 ---
 title: Using Redis modules with Azure Cache for Redis
-description: You can use Redis modules with your Azure Cache for Redis instances.
+description: You can use Redis modules with your Azure Cache for Redis instances to extend your caches on the Enterprise tiers.
 author: flang-msft
 
 ms.author: franlanglois