Merge pull request Azure#10937 from alunmj/patch-1

The example check is for contoso.westus...

Author: VeryEarly

src/Network/Network/help/Test-AzDnsAvailability.md

@@ -23,7 +23,7 @@ Checks whether a domain name in the cloudapp.azure.com zone is available for use
 
 ## EXAMPLES
 
-### Example 1: Check if contoso.cloudapp.azure.com is available for use.
+### Example 1: Check if contoso.westus.cloudapp.azure.com is available for use.
 ```
 Test-AzDnsAvailability -DomainNameLabel contoso -Location westus
 ```