Various fixes.

Author: dunglas

components/serializer.rst

@@ -160,10 +160,10 @@ Assume you have the following object plain-old-PHP object::
     }
 
 The definition of serialization can be specified using annotations, XML
-and YAML. The :class:Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory
+or YAML. The :class:`Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory`
 that will be used by the normalizer must be aware of the format to use.
 
-Initialize the :class:Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory
+Initialize the :class:`Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory`
 like the following::
 
     use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory;
@@ -245,7 +245,12 @@ You are now able to serialize only attributes in the groups you want::
     $data = $serializer->normalize($obj, null, array('groups' => array('group1')));
     // $data = ['foo' => 'foo'];
 
-    $obj2 = $serializer->denormalize(array('foo' => 'foo', 'bar' => 'bar'), 'MyObj', null, array('groups' => array('group1', 'group3')));
+    $obj2 = $serializer->denormalize(
+        array('foo' => 'foo', 'bar' => 'bar'),
+        'MyObj',
+        null,
+        array('groups' => array('group1', 'group3'))
+    );
     // $obj2 = MyObj(foo: 'foo', bar: 'bar')
 
 .. _ignoring-attributes-when-serializing:
@@ -262,7 +267,8 @@ Ignoring Attributes
     2.7, they are ignored when deserializing too.
 
 As an option, there's a way to ignore attributes from the origin object. To remove
-those attributes use the :method:`Symfony\\Component\\Serializer\\Normalizer\\GetSetMethodNormalizer::setIgnoredAttributes`
+those attributes use the
+:method:`Symfony\\Component\\Serializer\\Normalizer\\GetSetMethodNormalizer::setIgnoredAttributes`
 method on the normalizer definition::
 
     use Symfony\Component\Serializer\Serializer;
@@ -450,7 +456,7 @@ having unique identifiers::
 .. seealso::
 
     A popular alternative to the Symfony Serializer Component is the third-party
-    library, `JMS serializer`_.
+    library, `JMS serializer`_ (released under the Apache license, so incompatible with GPLv2 projects).
 
 .. _`JMS serializer`: https://github.com/schmittjoh/serializer
 .. _Packagist: https://packagist.org/packages/symfony/serializer