Update README.md

Author: dariusrosendahl

README.md

@@ -14,9 +14,10 @@ Use this Boilerplate to get started with your project right away!
 ## Get started
 1. Clone ```git clone https://github.com/CastleCSS/castlecss.git``` or [download](https://github.com/CastleCSS/castlecss-boilerplate/archive/master.zip) CastleCSS Boilerplate.
 2. Set up your project directory and a basic site structure.
-3. Run Grunt from your directory by typing ```Grunt``` in the commandline. If you haven't used Grunt before, be sure to check out the Getting Started guide.
-4. Add some content, do some styling and include functionality.
-5. Run your site locally and see how it all works out!
+3. Run ``npm install``in the commandline. This will download the neccecary packages and install them.
+4. Run Grunt from your directory by typing ```Grunt``` in the commandline. If you haven't used Grunt before, be sure to check out the Getting Started guide.
+5. Add some content, do some styling and include functionality.
+6. Run your site locally and see how it all works out!
 
 ## Basic structure
 The basis structure for your website should look similar like this: