add doc

Author: morrislaptop

README.md

@@ -5,15 +5,7 @@
 [![Total Downloads](https://img.shields.io/packagist/dt/morrislaptop/symfony-custom-normalizers.svg?style=flat-square)](https://packagist.org/packages/morrislaptop/symfony-custom-normalizers)
 
 
-This is where your description should go. Try and limit it to a paragraph or two. Consider adding a small example.
-
-## Support us
-
-[<img src="https://github-ads.s3.eu-central-1.amazonaws.com/package-skeleton-php.jpg?t=1" width="419px" />](https://spatie.be/github-ad-click/package-skeleton-php)
-
-We invest a lot of resources into creating [best in class open source packages](https://spatie.be/open-source). You can support us by [buying one of our paid products](https://spatie.be/open-source/support-us).
-
-We highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using. You'll find our address on [our contact page](https://spatie.be/about-us). We publish all received postcards on [our virtual postcard wall](https://spatie.be/open-source/postcards).
+A collection of normalizers that can be used with the Symfony serializer.
 
 ## Installation
 
@@ -26,10 +18,17 @@ composer require morrislaptop/symfony-custom-normalizers
 ## Usage
 
 ```php
-$skeleton = new Morrislaptop\SymfonyCustomNormalizers();
-echo $skeleton->echoPhrase('Hello, Morrislaptop!');
+$serializer = new Symfony\Serializer([
+    new Morrislaptop\SymfonyCustomNormalizers\MoneyNormalizer(),
+    new Morrislaptop\SymfonyCustomNormalizers\DatePeriodNormalizer(),
+    ...
+])
 ```
 
+## Plug
+
+Use Laravel? Easily cast your objects using the Symfony serializer with [morrislaptop/laravel-popo-caster](https://github.com/morrislaptop/laravel-popo-caster)
+
 ## Testing
 
 ```bash