dirDisqus: Add npm option to readme.

Author: michaelbromley

src/directives/disqus/README.md

@@ -15,7 +15,9 @@ the default hash-only (no `!`) urls that Angular uses.
 
 ## Installation
 
-1. Download the file `dirDisqus.js` or use the Bower command `bower install angular-utils-disqus`
+1. Download the file `dirDisqus.js` or: 
+    * via Bower: `bower install angular-utils-disqus`
+    * via npm: `npm install angular-utils-disqus`
 2. Include the JavaScript file in your index.html page.
 2. Add a reference to the module `angularUtils.directives.dirDisqus` to your app.
 

src/directives/disqus/dirDisqus.js

@@ -85,4 +85,4 @@
             }
         };
     }]);
-})();
+})();