Correct paths and fix comment

SimpleCmsBundle is not installed in this part

Author: jdespatis

tutorial/the-frontend.rst

@@ -121,13 +121,13 @@ The menu system expects to be able to find a root item which contains the
 first level of child items. Modify your fixtures to declare a root element
 to which you will add the existing ``Home`` page and an additional ``About`` page::
 
-    // src/Acme/BasicCmsBundle/DataFixtures/Phpcr/LoadPageData.php
-    namespace Acme\DemoBundle\DataFixtures\PHPCR;
+    // src/Acme/BasicCmsBundle/DataFixtures/PHPCR/LoadPageData.php
+    namespace Acme\BasicCmsBundle\DataFixtures\PHPCR;
 
     use Doctrine\Common\DataFixtures\FixtureInterface;
     use Doctrine\Common\Persistence\ObjectManager;
     use Doctrine\ODM\PHPCR\DocumentManager;
-    use Symfony\Cmf\Bundle\SimpleCmsBundle\Doctrine\Phpcr\Page;
+    use Acme\BasicCmsBundle\Document\Page;
 
     class LoadPageData implements FixtureInterface
     {