Update free-programming-books.md

Added Open Government; Collaboration, Transparency, and Participation in Practice by Daniel Lathrop, Laurel Ruma: O'reilly Media

free-programming-books.md

@@ -320,6 +320,7 @@
 * [Object-Oriented Reengineering Patterns](http://win.ua.ac.be/~sdemey/) - Serge Demeyer, Stéphane Ducasse and Oscar Nierstrasz
 * [High-Performance Scientific Computing](http://bit.ly/hpc12) (class lectures and slides)
 * [Mother Tongues of Computer Languages](http://www.digibarn.com/collections/posters/tongues/) (PNG)
+* [Open Government;Collaboration, Transparency, and Participation in Practice](https://github.com/oreillymedia/open_government)
 
 ####Web Performance
 * [Book of Speed](http://www.bookofspeed.com/index.html) by Stoyan Stefanov