Update Get-CsTeamsUpdateManagementPolicy.md

adding missing filter parameter

Author: michbrown-png

teams/teams-ps/teams/Get-CsTeamsUpdateManagementPolicy.md

@@ -18,18 +18,18 @@ Use this cmdlet to retrieve the current Teams Update Management policies in the
 ## SYNTAX
 
 ### Identity (Default)
-```
+```powershell
 Get-CsTeamsUpdateManagementPolicy [[-Identity] <String>] [-ProgressAction <ActionPreference>]
  [<CommonParameters>]
 ```
 
 ### Filter
-```
+```powershell
 Get-CsTeamsUpdateManagementPolicy [-Filter <String>] [-ProgressAction <ActionPreference>] [<CommonParameters>]
 ```
 
 ## DESCRIPTION
-Retrieves the current Teams Update Management policies in the organization.
+The Teams Update Management Policy allows admins to specify if a given user is enabled to preview features in Teams.
 
 ## EXAMPLES
 
@@ -57,6 +57,22 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
+### -Filter
+
+This parameter accepts a wildcard string and returns all policies with identities matching that string. For example, a Filter value of tag:* will return all policies defined at the per-user level.
+
+```yaml
+Type: String
+Parameter Sets: Filter
+Aliases:
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
 ### CommonParameters
 This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).