fix formatting

Author: rboucher

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

@@ -142,14 +142,14 @@ You can find the full list of supported resource types in this [article](../../a
 
 The following types are only supported by classic metric alerts. 
 
-Microsoft.ClassicCompute/virtualMachines 
-Microsoft.ClassicCompute/domainNames/slots/roles
-Microsoft.CognitiveServices/accounts
-Microsoft.ClassicStorage/storageAccounts
-Microsoft.Devices/IotHubs 
-Microsoft. Web/hostingEnvironments/multiRolePools 
-Microsoft. Web/hostingEnvironments/workerPools
-Microsoft.SQL/Servers 
+- Microsoft.ClassicCompute/virtualMachines 
+- Microsoft.ClassicCompute/domainNames/slots/roles
+- Microsoft.CognitiveServices/accounts
+- Microsoft.ClassicStorage/storageAccounts
+- Microsoft.Devices/IotHubs 
+- Microsoft. Web/hostingEnvironments/multiRolePools 
+- Microsoft. Web/hostingEnvironments/workerPools
+- Microsoft.SQL/Servers 
 
 ## Next steps