Corrected disallowed-html tags build warnings (MicrosoftDocs#3143)

Author: mikefrobbins

docs-conceptual/azps-12.2.0/upcoming-breaking-changes.md

@@ -122,7 +122,7 @@ title: Upcoming breaking changes in Azure PowerShell
     - The parameter : 'SourceEndpoint' is being replaced by parameter : 'PartnerEndpoint'.
     - This change is expected to take effect from Az.Sql version: 6.0.0 and Az version: 13.0.0
   - `-TargetDatabase`
-    - The parameter 'TargetDatabase' is being replaced by parameter 'Databases'. The type of new parameter is changing from 'String' to 'List<String>'
+    - The parameter 'TargetDatabase' is being replaced by parameter 'Databases'. The type of new parameter is changing from `String` to `List<String>`
     - This change is expected to take effect from Az.Sql version: 6.0.0 and Az version: 13.0.0
 
 ### `Remove-AzSqlInstanceLink`