Merge pull request usablica#224 from sudodoki/master

readme update: add where-to-get section

Author: afshinm

README.md

@@ -4,6 +4,16 @@
 
 <a href='https://pledgie.com/campaigns/23692'><img alt='Click here to lend your support to: IntroJS  and make a donation at pledgie.com !' src='https://pledgie.com/campaigns/23692.png?skin_name=chrome' border='0' ></a>
 
+## Where to get
+You can obtain your local copy of Intro.js from:
+
+**1)** This github repository, using ```git clone https://github.com/usablica/intro.js.git```
+
+**2)** Using bower ```bower install intro.js --save```
+
+**3)** Download it from CDN ([1](http://www.jsdelivr.com/#!intro.js), [2](http://cdnjs.com/#introjs))
+
+
 ## How to use
 Intro.js can be added to your site in three simple steps: