Fix command for retrieving security group ObjectID

Updated the command to retrieve security groups from Get-MsolGroup to Get-EntralGroup.

Author: msewaweru

sharepoint/sharepoint-ps/Microsoft.Online.SharePoint.PowerShell/Add-SPOGeoAdministrator.md

@@ -73,7 +73,7 @@ Accept wildcard characters: False
 
 > Applicable: SharePoint Online
 
-Not all security groups have a group alias. If you want to add a security group that does not have an alias, run Get-MsolGroup to retrieve a list of groups, find your security group's ObjectID, and then use this parameter. For more information, see [Add or remove a geo administrator in Microsoft 365 Multi-Geo](/office365/enterprise/add-a-sharepoint-geo-admin).
+Not all security groups have a group alias. If you want to add a security group that does not have an alias, run Get-EntralGroup to retrieve a list of groups, find your security group's ObjectID, and then use this parameter. For more information, see [Add or remove a geo administrator in Microsoft 365 Multi-Geo](/office365/enterprise/add-a-sharepoint-geo-admin).
 
 ```yaml
 Type: System.Guid