chmod before write README.mkdn, because M::B chmod 0600 to README.mkdn
Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index 4d74949..e565e68 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,11 @@
 Revision history for Perl extension Module::Build::Pluggable::ReadmeMarkdownFromPod

+0.04 2013-03-18T16:39:32
+
+    - M::B modifies README.mkdn to 0444.
+      We need to back it to writable.
+      (tokuhirom)
+
 0.02

     - split package from M::B::P core.