Add new examples (Azure#20361)

* Add new examples

* Implement Mike's feedback

src/Resources/Resources/help/Get-AzPolicyAssignment.md

@@ -68,6 +68,15 @@ Get-AzPolicyAssignment -Scope '/providers/Microsoft.Management/managementgroups/
 The first command specifies the ID of the management group to query.
 The second command gets all of the policy assignments that are assigned to the management group with ID 'myManagementGroup'.
 
+### Example 4: Get the scope, policy set definition identifier, and display name of all policy assignments formatted as a list
+
+```powershell
+Get-AzPolicyAssignment | Select-Object -ExpandProperty properties | Select-Object -Property Scope, PolicyDefinitionID, DisplayName | Format-List
+```
+
+This command is useful when you need to find the reader-friendly **DisplayName** property of an Azure
+Policy assignment.
+
 ## PARAMETERS
 
 ### -ApiVersion

src/Resources/Resources/help/Get-AzPolicyDefinition.md

@@ -84,10 +84,19 @@ This command gets all built-in policy definitions from the subscription with ID
 
 ### Example 5: Get policy definitions from a given category
 ```powershell
-Get-AzPolicyDefinition | Where-Object {$_.Properties.metadata.category -eq "Virtual Machine"}
+Get-AzPolicyDefinition | Where-Object {$_.Properties.metadata.category -eq 'Tags'}
 ```
 
-This command gets all policy definitions in category "Virtual Machine".
+This command gets all policy definitions in the category **Tags**.
+
+### Example 6: Get the display name, description, policy type, and metadata of all policy definitions formatted as a list
+
+```powershell
+Get-AzPolicyDefinition | Select-Object -ExpandProperty properties | Select-Object -Property DisplayName, Description, PolicyType, Metadata | Format-List
+```
+
+This command is useful when you need to find the reader-friendly **DisplayName** property of an Azure
+Policy definition. You can parse the **Metadata** property to discover the policy definition's version number and category assignment.
 
 ## PARAMETERS