Merge pull request #444 from dupuchba/feat/add-api-platform

[api] api-platform.com

README.md

 * [Drest](https://github.com/leedavis81/drest) - A library for exposing Doctrine entities as REST resource endpoints.
 * [Restler](https://github.com/Luracast/Restler) - A lightweight framework to expose PHP methods as RESTful web API.
 * [wsdl2phpgenerator](https://github.com/wsdl2phpgenerator/wsdl2phpgenerator) - A tool to generate PHP classes from SOAP WSDL files.
+* [API Platform](https://api-platform.com ) - Expose in minutes an hypermedia REST API that embraces JSON-LD, Hydra format.
 
 ## Caching
 *Libraries for caching data.*