added link to online demo

Alexandr Shurigin · Alexandr Shurigin · commit 7d5ce1f6bfb0 · 2014-05-31T03:18:42.000+07:00
diff --git a/README.markdown b/README.markdown
@@ -2,6 +2,10 @@
 
 browser.js makes it easy to write conditional CSS based on device operating system and web browser.
 
+### Online demo
+
+You can go to online [demo](http://phpdude.github.io/browser.js/demo/).
+
 ### Examples
 
 browser.js inserts css classes into `<html>` element.
