docs(aio): Update lazy loading docs for Angular v6

Author: samalexander

aio/content/examples/lazy-loading-ngmodules/src/app/app-routing.module.ts

@@ -8,11 +8,11 @@ import { Routes, RouterModule } from '@angular/router';
 const routes: Routes = [
   {
     path: 'customers',
-    loadChildren: 'app/customers/customers.module#CustomersModule'
+    loadChildren: './customers/customers.module#CustomersModule'
   },
   {
     path: 'orders',
-    loadChildren: 'app/orders/orders.module#OrdersModule'
+    loadChildren: './orders/orders.module#OrdersModule'
   },
   {
     path: '',

aio/content/guide/lazy-loading-ngmodules.md

@@ -143,7 +143,7 @@ In `AppRoutingModule`, update the `routes` array with the following:
 </code-example>
 
 
-The import statements stay the same. The first two paths are the routes to the `CustomersModule` and the `OrdersModule` respectively. Notice that the lazy loading syntax uses `loadChildren` followed by a string that is the path to the module, a hash mark or `#`, and the module’s class name.
+The import statements stay the same. The first two paths are the routes to the `CustomersModule` and the `OrdersModule` respectively. Notice that the lazy loading syntax uses `loadChildren` followed by a string that is the relative path to the module, a hash mark or `#`, and the module’s class name.
 
 ### Inside the feature module