Use correct <a> tag syntax in javadoc @see tag

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=137946021

java/google/registry/model/eppoutput/EppResponse.java

@@ -77,7 +77,8 @@ import javax.xml.bind.annotation.XmlType;
  * client.  EPP commands are atomic, so a command will either succeed completely or fail completely.
  * Success and failure results MUST NOT be mixed."
  *
- * @see "http://tools.ietf.org/html/rfc5730#section-2.6"
+ * @see <a href="http://tools.ietf.org/html/rfc5730#section-2.6">
+ *     RFC 5730 - EPP - Response Format</a>
  */
 @XmlType(propOrder = {"result", "messageQueueInfo", "resData", "extensions", "trid"})
 public class EppResponse extends ImmutableObject implements ResponseOrGreeting {