Update free-programming-books.md

free-programming-books.md

@@ -1588,7 +1588,7 @@ See also [TeX](#tex)
 * [Getting started with Django](http://gettingstartedwithdjango.com/) (video)
 * [Tango With Django](http://www.tangowithdjango.com/) (1.5)
 * [Test-Driven Web Development with Python](http://chimera.labs.oreilly.com/books/1234000000754/index.html) (1.7)
-* [The Django book](http://www.djangobook.com/en/2.0/) (2.0)
+* [The Django book](http://www.djangobook.com/en/2.0/) (1.4 but mostly 1.0)
 
 
 #### Flask