readme update

Author: mmasiukevich

README.md

@@ -0,0 +1,40 @@
+[![Build Status](https://travis-ci.org/mmasiukevich/message-serializer.svg?branch=master)](https://travis-ci.org/mmasiukevich/message-serializer)
+[![Code Coverage](https://scrutinizer-ci.com/g/mmasiukevich/message-serializer/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/mmasiukevich/message-serializer/?branch=master)
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/mmasiukevich/message-serializer/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/mmasiukevich/message-serializer/?branch=master)
+
+## What is it?
+
+A library that provides a basic implementation of message serialization (object -> JSON -> object) for [service-bus](https://github.com/mmasiukevich/service-bus) framework
+
+Currently implemented:
+* [Symfony Serialazer](https://github.com/mmasiukevich/message-serializer/blob/master/src/Symfony/SymfonyMessageSerializer.php): Supports normalization/denormalization of public/private properties; DateTime objects; Empty objects with closed constructor. The description of property types is in the PHPDoc.
+
+Usage example ([@see test case](https://github.com/mmasiukevich/message-serializer/blob/master/tests/Symfony/SymfonyMessageSerializerTest.php#L210):
+
+```php
+$serializer = new SymfonyMessageSerializer();
+
+$object = TestMessage::create(
+  'message-serializer',
+   null,
+  'dev-master',
+   Author::create('Vasiya', 'Pupkin')
+);
+
+echo $serializer->encode($object);
+```
+Will output:
+```json
+{
+  "message": {
+    "componentName": "message-serializer",
+    "stableVersion": null,
+    "devVersion": "dev-master",
+    "author": {
+      "firstName": "Vasiya",
+      "lastName": "Pupkin"
+    }
+  },
+  "namespace": "Desperado\\ServiceBus\\MessageSerializer\\Tests\\Stubs\\TestMessage"
+}
+```