Update README.md

Author: a8m

README.md

@@ -81,10 +81,11 @@
   - [isIdenticalTo](#isidenticalto) `===`
   - [isNotIdenticalTo](#isnotidenticalto) `!==`
 
-#Getting Started
-**(1)** You can install angular-filter using 3 different methods:
+#Get Started
+**(1)** You can install angular-filter using 4 different methods:
   - clone & [build](#developing) this repository
   - via **[Bower](http://bower.io/)**: by running `$ bower install angular-filter` from your terminal
+  - via **[npm](https://www.npmjs.org/)**: by running `$ npm install angular-filter` from your terminal
   - via cdnjs http://www.cdnjs.com/libraries/angular-filter
 
 **(2)** Include `angular-filter.js` (or `angular-filter.min.js`) in your `index.html`, after including Angular itself.