Polishing.

Fix Javadoc errors.

See #2095

Author: mp911de

src/main/java/org/springframework/data/elasticsearch/core/query/UpdateQuery.java

@@ -30,7 +30,7 @@
  * @author Mohsin Husen
  * @author Peter-Josef Meisch
  * @author Farid Faoudi
- * @see <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update.html>docs</a>
+ * @see <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update.html">docs</a>
  */
 public class UpdateQuery {