Added a Java schema generator to the website.

Author: danielbraun

implementations.html

@@ -161,6 +161,11 @@ <h3>Python</h3>
 	<ul>
 		<li><a id="link-impl-jsl" href="https://github.com/aromanovich/jsl">JSL</a> (BSD) - a Python DSL for defining JSON Schemas</li>
 	</ul>
+
+	<h3>Java</h3>
+	<ul>
+		<li><a id="link-impl-java" href="https://github.com/FasterXML/jackson-module-jsonSchema">Jackson JSON Schema Module</a> - (Apache 2.0)</li>
+	</ul>
 </div>
 
 <div class="show-hide" data-target="parsing-list"></div>