Updated the Quick Tour to the latest changes introduced by Symfony

quick_tour/the_big_picture.rst

@@ -131,18 +131,18 @@ of database calls, HTML tags and other PHP code in the same script. To achieve
 this goal with Symfony, you'll first need to learn a few fundamental concepts.
 
 When developing a Symfony application, your responsibility as a developer
-is to write the code that maps the user's *request* (e.g.  ``http://localhost:8000/app/example``)
+is to write the code that maps the user's *request* (e.g.  ``http://localhost:8000/``)
 to the *resource* associated with it (the ``Homepage`` HTML page).
 
 The code to execute is defined in **actions** and **controllers**. The mapping
 between user's requests and that code is defined via the **routing** configuration.
 And the contents displayed in the browser are usually rendered using **templates**.
 
-When you browsed ``http://localhost:8000/app/example`` earlier, Symfony executed
-the controller defined in the ``src/AppBundle/Controller/DefaultController.php``
-file and rendered the ``app/Resources/views/default/index.html.twig`` template.
-In the following sections you'll learn in detail the inner workings of Symfony
-controllers, routes and templates.
+When you browsed ``http://localhost:8000/`` earlier, Symfony executed the controller
+defined in the ``src/AppBundle/Controller/DefaultController.php`` file and rendered
+the ``app/Resources/views/default/index.html.twig`` template. In the following
+sections you'll learn in detail the inner workings of Symfony controllers, routes
+and templates.
 
 Actions and Controllers
 ~~~~~~~~~~~~~~~~~~~~~~~
@@ -155,11 +155,12 @@ because that will be explained in the next section)::
 
     use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
     use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+    use Symfony\Component\HttpFoundation\Request;
 
     class DefaultController extends Controller
     {
         /**
-         * @Route("/app/example", name="homepage")
+         * @Route("/", name="homepage")
          */
         public function indexAction()
         {
@@ -197,11 +198,12 @@ at the three lines of code above the ``indexAction`` method::
 
     use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
     use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+    use Symfony\Component\HttpFoundation\Request;
 
     class DefaultController extends Controller
     {
         /**
-         * @Route("/app/example", name="homepage")
+         * @Route("/", name="homepage")
          */
         public function indexAction()
         {
@@ -217,15 +219,14 @@ start with ``/**``, whereas regular PHP comments start with ``/*``.
 The first value of ``@Route()`` defines the URL that will trigger the execution
 of the action. As you don't have to add the host of your application to
 the URL (e.g. ```http://example.com``), these URLs are always relative and
-they are usually called *paths*. In this case, the ``/app/example`` path
-refers to the application homepage. The second value of ``@Route()`` (e.g.
-``name="homepage"``) is optional and sets the name of this route. For now
-this name is not needed, but later it'll be useful for linking pages.
+they are usually called *paths*. In this case, the ``/`` path refers to the
+application homepage. The second value of ``@Route()`` (e.g. ``name="homepage"``)
+is optional and sets the name of this route. For now this name is not needed,
+but later it'll be useful for linking pages.
 
-Considering all this, the ``@Route("/app/example", name="homepage")`` annotation
-creates a new route called ``homepage`` which makes Symfony execute the
-``index`` action of the ``Default`` controller when the user browses the
-``/app/example`` path of the application.
+Considering all this, the ``@Route("/", name="homepage")`` annotation creates a
+new route called ``homepage`` which makes Symfony execute the ``index`` action
+of the ``Default`` controller when the user browses the ``/`` path of the application.
 
 .. tip::
 
@@ -257,13 +258,14 @@ you'll see the following code:
     {% extends 'base.html.twig' %}
 
     {% block body %}
-        Homepage.
+        <h1>Welcome to Symfony</h1>
+
+        ...
     {% endblock %}
 
-This template is created with `Twig`_, a new template engine created for
-modern PHP applications. The
-:doc:`second part of this tutorial </quick_tour/the_view>` will introduce
-how templates work in Symfony.
+This template is created with `Twig`_, a template engine created for modern PHP
+applications. The :doc:`second part of this tutorial </quick_tour/the_view>`
+explains how templates work in Symfony.
 
 .. _quick-tour-big-picture-environments: