update README.
shipit 0.06

ChangeLog diff is followings:

	-0.05    Mon Jan 21 10:13:00 JST 2013
	+0.06    Mon Jan 09 10:27:00 JST 2013
	+        - [MISC] update docs. (thanks schwern)
	+
	+0.05    Mon Jan 08 10:13:00 JST 2013
		 - [FEATURE] added new api: type_isnt, type_doesnt. (thanks schwern)
		 - [MOD] option can take CodeRef for testing coercion results. (thanks schwern)