docs: fix and update the sample codes

Author: kenjis

user_guide_src/source/concepts/services.rst

@@ -106,14 +106,14 @@ CodeIgniter's classes provide an interface that they adhere to. When you want to
 core classes, you only need to ensure you meet the requirements of the interface and you know that
 the classes are compatible.
 
-For example, the ``RouterCollection`` class implements the ``RouterCollectionInterface``. When you
+For example, the ``RouteCollection`` class implements the ``RouteCollectionInterface``. When you
 want to create a replacement that provides a different way to create routes, you just need to
-create a new class that implements the ``RouterCollectionInterface``:
+create a new class that implements the ``RouteCollectionInterface``:
 
 .. literalinclude:: services/006.php
 
-Finally, modify **app/Config/Services.php** to create a new instance of ``MyRouter``
-instead of ``CodeIgniter\Router\RouterCollection``:
+Finally, add the ``routes()`` method to **app/Config/Services.php** to create a new instance of ``MyRouteCollection``
+instead of ``CodeIgniter\Router\RouteCollection``:
 
 .. literalinclude:: services/007.php
 

user_guide_src/source/concepts/services/006.php

@@ -4,7 +4,7 @@
 
 use CodeIgniter\Router\RouteCollectionInterface;
 
-class MyRouter implements RouteCollectionInterface
+class MyRouteCollection implements RouteCollectionInterface
 {
     // Implement required methods here.
 }

user_guide_src/source/concepts/services/007.php

@@ -6,10 +6,10 @@
 
 class Services extends BaseService
 {
+    // ...
+
     public static function routes()
     {
-        return new \App\Router\MyRouter();
+        return new \App\Router\MyRouteCollection(static::locator(), config('Modules'));
     }
-
-    // ...
 }

user_guide_src/source/concepts/services/010.php

@@ -6,14 +6,14 @@
 
 class Services extends BaseService
 {
-    public static function routes($getShared = false)
+    // ...
+
+    public static function routes($getShared = true)
     {
-        if (! $getShared) {
-            return new \CodeIgniter\Router\RouteCollection();
+        if ($getShared) {
+            return static::getSharedInstance('routes');
         }
 
-        return static::getSharedInstance('routes');
+        return new \App\Router\MyRouteCollection(static::locator(), config('Modules'));
     }
-
-    // ...
 }