minor #15255 Minor fixes (sebpacz)

This PR was merged into the 4.4 branch.

Discussion
----------

Minor fixes

This PR adds minor fixes to three pages.

Commits
-------

80ad104 Minor fixes

Author: javiereguiluz

controller.rst

@@ -271,7 +271,7 @@ the argument by its name:
             ->addTag('controller.service_arguments')
             ->setBindings([
                 '$logger' => new Reference('monolog.logger.doctrine'),
-                '$projectDir' => '%kernel.project_dir%'
+                '$projectDir' => '%kernel.project_dir%',
             ])
         ;
 

introduction/from_flat_php_to_symfony.rst

@@ -528,7 +528,7 @@ The Sample Application in Symfony
 
 The blog has come a *long* way, but it still contains a lot of code for such
 a basic application. Along the way, you've made a basic routing system and
-a method using ``ob_start()`` and ``ob_get_clean()`` to render templates.
+a function using ``ob_start()`` and ``ob_get_clean()`` to render templates.
 If, for some reason, you needed to continue building this "framework" from
 scratch, you could at least use Symfony's standalone :doc:`Routing </routing>`
 component and :doc:`Twig </templates>`, which already solve these problems.

page_creation.rst

@@ -220,7 +220,7 @@ Make sure that ``LuckyController`` extends Symfony's base
           // ...
       }
 
-Now, use the handy ``render()`` function to render a template. Pass it a ``number``
+Now, use the handy ``render()`` method to render a template. Pass it a ``number``
 variable so you can use it in Twig::
 
     // src/Controller/LuckyController.php