Updated license badge in README (#32)

README.md

@@ -3,7 +3,7 @@
 [![Build Status](https://img.shields.io/travis/ezsystems/ezplatform-xmltext-fieldtype.svg?style=flat-square&branch=master)](https://travis-ci.org/ezsystems/ezplatform-xmltext-fieldtype)
 [![Downloads](https://img.shields.io/packagist/dt/ezsystems/ezplatform-xmltext-fieldtype.svg?style=flat-square)](https://packagist.org/packages/ezsystems/ezplatform-xmltext-fieldtype)
 [![Latest release](https://img.shields.io/github/release/ezsystems/ezplatform-xmltext-fieldtype.svg?style=flat-square)](https://github.com/ezsystems/ezplatform-xmltext-fieldtype/releases)
-[![License](https://img.shields.io/packagist/l/ezsystems/ezplatform-xmltext-fieldtype.svg?style=flat-square)](LICENSE)
+[![License](https://img.shields.io/github/license/ezsystems/ezplatform-xmltext-fieldtype.svg?style=flat-square)](LICENSE)
 
 This is the XmlText field type for eZ Platform. It was extracted from the eZ Publish / Platform 5.x as it has been suceeded by docbook based [RichText](https://github.com/ezsystems/ezpublish-kernel/tree/master/eZ/Publish/Core/FieldType/RichText) field type.