Update prometheus-metrics-enable.md

Fix naming schema.

Author: heoelri

articles/azure-monitor/essentials/prometheus-metrics-enable.md

@@ -253,7 +253,7 @@ ama-metrics-ksm-5fcf8dffcd      1         1         1       11h
 ## Limitations
 
 - Ensure that you update the `kube-state metrics` Annotations and Labels list with proper formatting. There's a limitation in the Resource Manager template deployments that require exact values in the `kube-state` metrics pods. If the kuberenetes pod has any issues with malformed parameters and isn't running, then the feature won't work as expected.
-- A data collection rule and data collection endpoint is created with the name `MSPROM-\<cluster-name\>-\<cluster-region\>`. These names can't currently be modified.
+- A data collection rule and data collection endpoint is created with the name `MSProm-\<short-cluster-region\>-\<cluster-name\>`. These names can't currently be modified.
 - You must get the existing Azure Monitor workspace integrations for a Grafana workspace and update the Resource Manager template with it, otherwise it will overwrite and remove the existing integrations from the grafana workspace.
 - CPU and Memory requests and limits can't be changed for Container insights metrics addon. If changed, they'll be reconciled and replaced by original values in a few seconds.
 - Metrics addon doesn't work on AKS clusters configured with HTTP proxy.