Change default value of messaging policy to Enabled

Author: gramirez-msft

teams/teams-ps/MicrosoftTeams/New-CsTeamsMessagingPolicy.md

@@ -769,7 +769,7 @@ Type: System.String
 Parameter Sets: (All)
 Required: False
 Position: Named
-Default value: Disabled
+Default value: Enabled
 Accept pipeline input: False
 Accept wildcard characters: False
 ```