[#4779] Minor tweaks to a huge PR

Author: weaverryan

book/http_cache.rst

@@ -734,7 +734,7 @@ exposing a simple and efficient pattern::
             $comments = ...;
 
             // or render a template with the $response you've already started
-            return $this->render('Article/show.html.twig', array(
+            return $this->render('article/show.html.twig', array(
                 'article' => $article,
                 'comments' => $comments
             ), $response);

book/testing.rst

@@ -356,7 +356,7 @@ giving you a nice API for uploading files.
     :ref:`Crawler <book-testing-crawler>` section below.
 
 The ``request`` method can also be used to simulate form submissions directly
-or perform more complex requests. Some usefull examples::
+or perform more complex requests. Some useful examples::
 
     // Directly submit a form (but using the Crawler is easier!)
     $client->request('POST', '/submit', array('name' => 'Fabien'));

book/validation.rst

@@ -166,7 +166,7 @@ will appear.
 You could also pass the collection of errors into a template::
 
     if (count($errors) > 0) {
-        return $this->render('Author/validation.html.twig', array(
+        return $this->render('author/validation.html.twig', array(
             'errors' => $errors,
         ));
     }
@@ -177,7 +177,7 @@ Inside the template, you can output the list of errors exactly as needed:
 
     .. code-block:: html+jinja
 
-        {# app/Resources/views/Author/validation.html.twig #}
+        {# app/Resources/views/author/validation.html.twig #}
         <h3>The author has the following errors</h3>
         <ul>
         {% for error in errors %}
@@ -187,7 +187,7 @@ Inside the template, you can output the list of errors exactly as needed:
 
     .. code-block:: html+php
 
-        <!-- app/Resources/views/Author/validation.html.php -->
+        <!-- app/Resources/views/author/validation.html.php -->
         <h3>The author has the following errors</h3>
         <ul>
         <?php foreach ($errors as $error): ?>
@@ -235,7 +235,7 @@ workflow looks like the following from inside a controller::
             return $this->redirect($this->generateUrl(...));
         }
 
-        return $this->render('Author/form.html.twig', array(
+        return $this->render('author/form.html.twig', array(
             'form' => $form->createView(),
         ));
     }