Merge pull request #39 from AlexKVal/patch-1

fix typo

Author: Kelly Selden

_posts/2013-04-06-developing-addons-and-blueprints.md

@@ -188,7 +188,7 @@ Optionally, you may specify whether your `ember-addon` must run `"before"` or `"
 
 Optionally, you may specify a different name for the `"defaultBlueprint"`. It defaults to the name in the `package.json`. This blueprint will be run automatically when your addon is installed with the `ember install` command.
 
-Optionally, you may specify the `"demoURL"` property with the fully qualified URL of a website showing your addon in action. Sites likes [Ember Addons](http://emberaddons.com/) and [Ember Observer](http://emberobserver.com/) will display a link to `"demoURL"`.
+Optionally, you may specify the `"demoURL"` property with the fully qualified URL of a website showing your addon in action. Sites like [Ember Addons](http://emberaddons.com/) and [Ember Observer](http://emberobserver.com/) will display a link to `"demoURL"`.
 
 {% highlight javascript %}
 "ember-addon": {