Add links to PowerShell cmdlets referenced in the document (#13203)

Author: mburleigh

src/Monitor/Monitor/help/New-AzMetricAlertRuleV2Criteria.md

@@ -35,7 +35,7 @@ New-AzMetricAlertRuleV2Criteria [-WebTest] -WebTestId <String> -ApplicationInsig
 ```
 
 ## DESCRIPTION
-The **New-AzMetricAlertRuleV2Criteria** cmdlet creates a local metric criteria object to be used as an input Add-AzMetricAlertRuleV2 cmdlet which creates a new metric alert rule.
+The **New-AzMetricAlertRuleV2Criteria** cmdlet creates a local metric criteria object to be used as an input [Add-AzMetricAlertRuleV2](https://docs.microsoft.com/en-us/powershell/module/az.monitor/add-azmetricalertrulev2) cmdlet which creates a new metric alert rule.
 
 ## EXAMPLES