(AzureCXP) fixes MicrosoftDocs/defender-docs-pr#482177

Updated lline number 742.
From
<string>
To
<string/>

Author: pradeepmi-MSFT

defender-endpoint/mac-preferences.md

@@ -739,7 +739,7 @@ The following configuration profile (or, if there's JAMF, a property list that c
                 <key>PayloadOrganization</key>
                 <string>Microsoft</string>
                 <key>PayloadIdentifier</key>
-                <string>
+                <string/>
                 <key>PayloadDisplayName</key>
                 <string>Microsoft Defender for Endpoint configuration settings</string>
                 <key>PayloadDescription</key>