added setup steps to readme

Author: mkuklis

README.md

@@ -18,10 +18,17 @@ Include link to `jquery.mobile.flatui.css`
 ![jQuery-Mobile-Flat-UI-Theme](http://oi46.tinypic.com/xm2xlc.jpg)
 
 
-## Adding new swatches / colors
+## Setup
 
 In order to add a new swatch or colors you can add a new stylus file under `src/stylus/swatches/` and run [grunt](http://gruntjs.com/) from your command line.
 
+- brew install node
+- npm install -g grunt-cli
+- cd to project's folder
+- npm install
+- grunt watch 
+- start modifying css/stylus files
+
 ## Notes
 
 The current work is based on jQuery Mobile v1.3. This is still a work in progress. Please don't be afraid to report any issues you will find.