update document
add requires.
Checking in changes prior to tagging of version 0.03.

Changelog diff is:

diff --git a/Changes b/Changes
index 3652067..4aed6d2 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension Devel-Cover-Report-Coveralls

 {{$NEXT}}

+0.03 2013-05-22T10:04:22Z
+    - fixed document
+    - remove debug print (thanks songmu)
+
 0.02 2013-05-08T06:18:23Z
     - fixed test at travis ci