Add default value for EnableSpendLimits in Set-CsTeamsCallingPolicy

Author: klashkevich-microsoft

teams/teams-ps/teams/Set-CsTeamsCallingPolicy.md

@@ -432,7 +432,7 @@ Applicable: Microsoft Teams
 
 Required: False
 Position: Named
-Default value: None
+Default value: False
 Accept pipeline input: False
 Accept wildcard characters: False
 ```