Update Add-SPOContainerUser.md

Author: ShreyasSar26

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

@@ -41,7 +41,7 @@ For permissions and the most current information about Windows PowerShell for Sh
 ### Example 1
 
 ```powershell
-Add-SPOContainerUser 423poi45 -LoginName shras@contoso.com-Role Owner
+Add-SPOContainerUser 423poi45 -LoginName shras@contoso.com -Role Owner
 ```
 
 Example 1 assigns the role of owner to user with User Principal Name "shras@contoso.com".