docs(gen:route): update for 4.x.x [skip ci]

Author: Awk34

docs/generators/route.md

@@ -12,7 +12,17 @@ yo angular-fullstack:route myroute
 Produces:
 
     client/app/myroute/myroute.js
-    client/app/myroute/myroute.controller.js
-    client/app/myroute/myroute.controller.spec.js
+    client/app/myroute/myroute.component.js
+    client/app/myroute/myroute.component.spec.js
     client/app/myroute/myroute.html
     client/app/myroute/myroute.scss
+
+Your new `myroute.component.js` will contain Angular code registering a new module, defaulting to `myApp.myRoute`. The default export of the component will be this name. Make sure to import this name in a parent Angular module, and add it as a dependency like so:
+
+```js
+import myRouteComponent from './myroute/myroute.component';
+
+...
+
+angular.module('myApp.myParent', [myRouteComponent]);
+```