(Azure CXP) fixes MIcrosoftDocs/azure-docs#39354

Fixed the hosts file entry

Author: ManojReddy-MSFT

articles/active-directory-domain-services/join-centos-linux-vm.md

@@ -65,7 +65,7 @@ In the *hosts* file, update the *localhost* address. In the following example:
 Update these names with your own values:
 
 ```console
-127.0.0.1 centos centos.contoso.com
+127.0.0.1 centos.contoso.com centos
 ```
 
 When done, save and exit the *hosts* file using the `:wq` command of the editor.