Added link to prometheus alert types

Author: AbbyMSFT

articles/azure-monitor/alerts/alerts-overview.md

@@ -54,7 +54,7 @@ See [this article](alerts-types.md) for detailed information about each alert ty
 |[Log alerts](alerts-types.md#log-alerts)|Log alerts allow users to use a Log Analytics query to evaluate resource logs at a predefined frequency.|
 |[Activity log alerts](alerts-types.md#activity-log-alerts)|Activity log alerts are triggered when a new activity log event occurs that matches defined conditions. **Resource Health** alerts and **Service Health** alerts are activity log alerts that report on your service and resource health.|
 |[Smart detection alerts](alerts-types.md#smart-detection-alerts)|Smart detection on an Application Insights resource automatically warns you of potential performance problems and failure anomalies in your web application. You can migrate smart detection on your Application Insights resource to create alert rules for the different smart detection modules.|
-|Prometheus alerts (preview)|Prometheus alerts are used for alerting on performance and health of Kubernetes clusters (including AKS). The alert rules are based on PromQL, which is an open source query language.|
+|[Prometheus alerts (preview)](alerts-types.md#prometheus-alerts-preview)|Prometheus alerts are used for alerting on performance and health of Kubernetes clusters (including AKS). The alert rules are based on PromQL, which is an open source query language.|
 
 ## Out-of-the-box alert rules (preview)
 

articles/azure-monitor/alerts/alerts-types.md

@@ -21,6 +21,7 @@ There are four types of alerts:
     - [Resource Health alerts](#resource-health-alerts)
 - [Smart detection alerts](#smart-detection-alerts)
 - [Prometheus alerts](#prometheus-alerts-preview) (preview)
+
 ## Choosing the right alert type
 
 This table can help you decide when to use what type of alert. For more detailed information about pricing, see the [pricing page](https://azure.microsoft.com/pricing/details/monitor/).