Added official npm release to the change log

Related to #134.

Author: stevenbenner

CHANGELOG.yml

@@ -26,6 +26,7 @@ v1.3.0:
       changes:
         - Fixed script url in the examples HTML file incuded in the release.
         - Documented the caching quirks for changing tooltip content.
+        - PowerTip is now officially available on npm (as "jquery-powertip").
 v1.2.0:
   date: 2013-04-03
   diff: https://github.com/stevenbenner/jquery-powertip/compare/v1.1.0...v1.2.0