Update link to gwt site

Author: Tino Desjardins

README.md

@@ -5,7 +5,7 @@ GWT-OpenLayers 3+
 [![Maven Central](https://img.shields.io/maven-central/v/com.github.tdesjardins/gwt-ol3.svg?colorB=44cc11)](https://central.sonatype.com/artifact/com.github.tdesjardins/gwt-ol3/)
 [![Join the chat at https://gitter.im/gwt-ol3/Lobby](https://badges.gitter.im/gwt-ol3/Lobby.svg)](https://gitter.im/gwt-ol3/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-With **gwt-ol** you can write fast mapping applications for web and mobile in pure Java. Technically speaking, it is a GWT wrapper for [OpenLayers 3+](http://openlayers.org/ "OpenLayers website") using the [JSInterop](https://docs.google.com/document/d/10fmlEYIHcyead_4R1S5wKGs1t2I7Fnp_PaNaa7XTEk0/edit)-Features of the [GWT-SDK](http://www.gwtproject.org/release-notes.html#Release_Notes_2_8_0 "Release notes"). The project consists of two parts:
+With **gwt-ol** you can write fast mapping applications for web and mobile in pure Java. Technically speaking, it is a GWT wrapper for [OpenLayers 3+](http://openlayers.org/ "OpenLayers website") using the [JSInterop](https://docs.google.com/document/d/10fmlEYIHcyead_4R1S5wKGs1t2I7Fnp_PaNaa7XTEk0/edit)-Features of the [GWT-SDK](https://www.gwtproject.org/release-notes.html#Release_Notes_2_12_2 "Release notes"). The project consists of two parts:
 
   * a GWT wrapper for OpenLayers 3+ (gwt-ol3-client)
   * a demo module for showing wrapper functionality (gwt-ol3-demo)