Update README with link to bl.ocks.org example.

Author: mtye

README.md

@@ -14,10 +14,17 @@ It was conceived at the 2012 Java Posse [Roundup][roundup], an amazing gathering
 [visarticle]: http://en.wikipedia.org/wiki/Information_visualization
 [githubjpr]: https://github.com/JavaPosseRoundup "Java Posse Roundup at github"
 
-# Installation and Use
+## Installation and Use
 
 To use this project, simple clone this github repository and open the ```commits.html``` file in your web browser. The d3 library is available in the root directory, so there's no need to install it (or anything else).
 
-# Compatibility
+## Examples
+
+To see the d3github visualizer in use without cloning/downloading the project, look at this [example][example] on [bl.ocks.org][blocksorg].
+
+[example]: http://bl.ocks.org/2356163
+[blockorg]: http://bl.ocks.org
+
+## Compatibility
 
 The d3 library uses the CSS Selectors API Level 1 and SVG, which may not be supported in older browsers. This code in this project has been verified to work with Google Chrome (verison 17.0), Firefox (11.0), and Safari (5.1), but not with Internet Explorer. The minimum versions that _should_ work are Chrome 4.0, Firefox 3.5, Safari 3.2, and Internet Explorer 9.0.