Fix error from DoctorRst

Author: gary houbre

controller/error_pages.rst

@@ -208,7 +208,7 @@ JSON/XML/CSV/YAML encoders. When your application throws an exception, Symfony
 can output it in one of those formats. If you want to change the output
 contents, create a new Normalizer that supports the ``FlattenException`` input::
 
-    # src/App/Serializer/MyCustomProblemNormalizer.php
+    # src/Serializer/MyCustomProblemNormalizer.php
     namespace App\Serializer;
 
     use Symfony\Component\ErrorHandler\Exception\FlattenException;

doctrine/resolve_target_entity.rst

@@ -140,8 +140,8 @@ about the replacement:
     .. code-block:: php
 
         // config/packages/doctrine.php
-        use App\Model\InvoiceSubjectInterface;
         use App\Entity\Customer;
+        use App\Model\InvoiceSubjectInterface;
 
         $container->loadFromExtension('doctrine', [
             'orm' => [

form/type_guesser.rst

@@ -82,6 +82,7 @@ The ``TypeGuess`` constructor requires three options:
 With this knowledge, you can implement the ``guessType()`` method of the
 ``PHPDocTypeGuesser``::
 
+    // src/Form/TypeGuesser/PHPDocTypeGuesser.php
     namespace App\Form\TypeGuesser;
 
     use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
@@ -221,7 +222,7 @@ and tag it with ``form.type_guesser``:
     :method:`Symfony\\Component\\Form\\FormFactoryBuilder::addTypeGuessers` of
     the ``FormFactoryBuilder`` to register new type guessers::
 
-        use Acme\Form\PHPDocTypeGuesser;
+        use App\Form\TypeGuesser\PHPDocTypeGuesser;
         use Symfony\Component\Form\Forms;
 
         $formFactory = Forms::createFormFactoryBuilder()