feat(post): brand Service Worker in post “Welcome”

_app/_posts/note/2014-06-13-welcome.md

@@ -20,6 +20,7 @@ Go to the [GitHub](https://github.com/sparanoid/almace-scaffolding) page for dow
 - **Almace Scaffolding** ships a sleek responsive theme [Curtana](https://github.com/amsf/amsf-curtana), a variant of [sparanoid.com](https://sparanoid.com/), looking great on any modern browsers
 - Every minified page generates only one HTTP request [^1]
 - [Tons of configurable settings](https://github.com/sparanoid/almace-scaffolding/blob/master/_config.init.yml) for your posts and site customization
+- Service Worker support for lightning fast experience
 - Built with Grunt.js for easy development
 - Travis support