minor #6249 [Cookbook][Serializer] fix wording (xabbuh)

wouterj · wouterj · commit 0cbea243e81f · 2016-02-10T11:01:42.000+01:00
This PR was merged into the 2.7 branch. Discussion ---------- [Cookbook][Serializer] fix wording Commits ------- 5dcca79 [Cookbook][Serializer] fix wording
diff --git a/cookbook/serializer.rst b/cookbook/serializer.rst
@@ -178,7 +178,8 @@ Enabling the Metadata Cache
 ---------------------------
 
 .. versionadded:: 2.7
-    Serializer was introduced in Symfony 2.7.
+    Serializer metadata and the ability to cache them were introduced in
+    Symfony 2.7.
 
 Metadata used by the Serializer component such as groups can be cached to
 enhance application performance. Any service implementing the ``Doctrine\Common\Cache\Cache``
