docs(lb4): scaffolding a REST Controller with CRUD

pages/en/lb4/Controller-generator.md

@@ -31,8 +31,28 @@ If provided, the tool will use that as the default when it prompts for the name.
 
 The tool will prompt you for:
 
-- Name of the controller. If the name had been supplied from the command line, the prompt is skipped and the controller is built with the name from the command-line argument.
+- Name of the controller. If the name had been supplied from the command line,
+the prompt is skipped and the controller is built with the name from the
+command-line argument.
+- Type of the controller. You can select from the following types:
+  * **Empty Controller** - An empty controller definition
+  * **Basic CRUD Controller** - A controller wired up to a model and repository
+  definition, with pre-defined CRUD methods.
+
+#### REST Controller with CRUD Methods
+If you select the REST Controller with CRUD Methods type, you will then be asked
+to select:
+- The model to use for the CRUD function definitions
+- The repository for this model that provides datasource connectivity
+
+{% include warning.html content=
+"
+If you do not have a model and repository to select, then you will
+receive an error!
+" lang=page.lang %}
 
 ### Output
-
-The tool will create a new file as <code>/src/controllers/<i>controller-name</i>.controller.ts</code>. The file will contain an empty constructor and common package imports that can be uncommented.
+The tool will create a new file as
+<code>/src/controllers/<i>controller-name</i>.controller.ts</code>.
+The file will contain an empty constructor and common package imports that can
+be uncommented.