Docs: Add badges (#3)

Author: stramel

README.md

@@ -1,6 +1,9 @@
+[![Build Status](https://img.shields.io/travis/MaritzSTL/mtz-lazy-imports-handler-behavior/master.svg?style=flat-square)](https://travis-ci.org/MaritzSTL/mtz-lazy-imports-handler-behavior)
+[![Published on webcomponents.org](https://img.shields.io/badge/webcomponents.org-published-blue.svg?style=flat-square)](https://www.webcomponents.org/element/MaritzSTL/mtz-lazy-imports-handler-behavior)
+
 # \<mtz-lazy-imports-handler-behavior\>
 
-Pulls in the Polymer.LazyImportsBehavior and listens for an event to tell an instance of this behavior to attempt to import a lazy-group within the provided domain, if it is found then it will stop the event propagation. Listens for events on the use-capture event cycle.
+Pulls in the `Polymer.LazyImportsBehavior` and listens for an event to tell an instance of this behavior to attempt to import a lazy-group within the provided domain, if it is found then it will stop the event propagation. Listens for events on the use-capture event cycle.
 
 ## Install the Polymer-CLI