fix invalid field
Checking in changes prior to tagging of version 0.06.

Changelog diff is:

diff --git a/Changes b/Changes
index 91f81cf..61d8ebc 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,9 @@ Revision history for Perl extension WWW-DojinEvent

 {{$NEXT}}

+0.06 2013-06-02T12:27:45Z
+    - fix invalid field
+
 0.05 2013-06-01T07:36:05Z
     - show warning when invalid $url