Fix Sphinx error

components/console/helpers/cursor.rst

@@ -17,6 +17,8 @@ of the output:
    :align: center
 
 
+.. code-block:: php
+
     // src/Commande/MyCommand.php
     use Symfony\Component\Console\Command\Command;
     use Symfony\Component\Console\Cursor;
@@ -47,7 +49,7 @@ Using the cursor
 ----------------
 
 Moving the cursor
-................
+.................
 
 There are fews methods to control moving the command cursor::
 
@@ -79,7 +81,7 @@ You can get the current command's cursor position by using::
     // $position[1] // rows (aka y coordinate)
 
 Clearing output
-................
+...............
 
 The cursor can also clear some output on the screen::