Fixed license header

Author: derjust

src/changes/changes.xml

@@ -1,6 +1,6 @@
 <!--
 
-    Copyright © 2018 spring-data-dynamodb (https://github.com/spring-data-dynamodb/spring-data-dynamodb)
+    Copyright © 2018 spring-data-dynamodb (https://github.com/derjust/spring-data-dynamodb)
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.