added learn pandas to the list

free-programming-books.md

@@ -116,6 +116,7 @@
 * [Python](#python)
     * [Django](#django-version)
     * [Flask](#flask)
+    * [Pandas](#pandas)
 * [QML](#qml)
 * [R](#r)
 * [Racket](#racket)
@@ -1372,6 +1373,10 @@ See also [TeX](#tex)
 * [The Flask Blog tutorial](http://pypix.com/python/building-flask-blog-part-1/) - Pypix
 
 
+####Pandas
+* [Learn Pandas](https://bitbucket.org/hrojas/learn-pandas) - Hernan Rojas
+
+
 ###QML
 * [Qt5 Cadaques](http://qmlbook.org/) (HTML, PDF, ePub) (work in progress) - Juergen Bocklage-Ryannel and Johan Thelin