Refine modular CRM tutorial by simplifying instructions for installing the Ordering module and clarifying package selections

docs/en/tutorials/modular-crm/part-04.md

@@ -70,8 +70,6 @@ Select the `ModularCrm.Ordering` module and check the *Install this module* opti
 
 ![abp-studio-install-module-dialog](images/abp-studio-install-module-dialog.png)
 
-Select the `ModuleCrm.Ordering` package from the left area and the `ModularCrm.Domain` package from the middle area. Then, select the `ModularCrm.Ordering.UI` package from the left area and the `ModularCrm.Web` package from the middle area, as shown in the preceding figure. Finally, click *OK*.
-
-> Since the Ordering module is not layered, we didn't install its packages to the layers of our main application. We are installing it only to `ModularCrm.Domain`. In this way, we can use the Ordering module from any layer of our application since `ModularCrm.Domain` is one of the core packages of our application. If you build your modules as non-layered and you don't have much code in the main application's .NET solution, you can also consider creating a non-layered main application that composes these modules.
+Select the `ModuleCrm.Ordering` and `ModularCrm.Ordering.UI` packages from the left area and the `ModularCrm` package from the middle area as shown in the preceding figure. Finally, click *OK*.
 
 In this part of the tutorial, we've created a standard module. This allows you to create modules or applications with a different structure. In the next part, we will add functionality to the Ordering module.