Update cache-insights-overview.md

Updating typo mistake from 'storage account' to 'redis caches' in line number 43 as the section is talking about monitoring Redis caches not storage accounts

Author: RidhimaSS

articles/azure-cache-for-redis/cache-insights-overview.md

@@ -40,7 +40,7 @@ This feature doesn't require you to enable or configure anything. Azure Cache fo
 
 ## View utilization and performance metrics for Azure Cache for Redis
 
-To view the utilization and performance of your storage accounts across all of your subscriptions, do the following steps:
+To view the utilization and performance of your redis caches across all of your subscriptions, do the following steps:
 
 1. Sign in to the [Azure portal](https://portal.azure.com).