Added an example of the mapping between methods and properties

Author: javiereguiluz

components/serializer.rst

@@ -512,8 +512,8 @@ There are several types of normalizers available:
     calling the constructor during the denormalization process.
 
     Objects are normalized to a map of property names (method name stripped of
-    the "get"/"set"/"has"/"remove" prefix) to property
-    values.
+    the get/set/has/remove prefix) to property values. For example:
+    ``getDateOfBirth()`` is mapped to the ``DateOfBirth`` property.
 
     The ``ObjectNormalizer`` is the most powerful normalizer. It is configured by
     default when using the Symfony Standard Edition with the serializer enabled.
@@ -524,7 +524,8 @@ There are several types of normalizers available:
     the constructor and the "setters" (public methods starting with "set").
 
     Objects are normalized to a map of property names (method name stripped of
-    the "get" prefix) to property values.
+    the "get" prefix) to property values. For example: ``getDateOfBirth()`` is
+    mapped to the ``DateOfBirth`` property.
 
 :class:`Symfony\\Component\\Serializer\\Normalizer\\PropertyNormalizer`
     This normalizer directly reads and writes public properties as well as