Fix typo in version name in documentation

Author: chrisda

exchange/exchange-ps/exchange/Get-VivaModuleFeatureEnablement.md

@@ -119,7 +119,7 @@ Accept wildcard characters: False
 ```
 
 ### -Detailed
-This parameter is available in version 3.8.0-Preiew2 or later of the module.
+This parameter is available in version 3.8.0-Preview2 or later of the module.
 
 The Detailed switch enhances the output of the command by providing more comprehensive information. You don't need to specify a value with this switch.