remove dead link from free-programming-books-tr.md (#3024)

* Remove dead link from free-programming-books-tr.md

* Change Django heading to same size as other headings

free-programming-books-tr.md

@@ -118,12 +118,11 @@
 
 ### Python
 
-* [Bilgisayar Bilimcisi gibi Düşünmek Python ile Öğrenme 2. Baskı](https://tekrei.github.io/other/bbgd_p/) - Allen B. Downey, Jeff Elkner and Chris Meyers
 * [Bilgisayar Bilimcisi Gibi Düşünmek-Python3 ile Öğrenme](http://ofenerci.github.io/thinkcspy-tr) - Peter Wentworth, Jeffrey Elkner, Allen B. Downey ve Chris Meyers
 * [Python ile Programlama](https://belgeler.yazbel.com/python-istihza/)
 
 
-#### Django
+### Django
 
 * [Django Girls Eğitimi](https://tutorial.djangogirls.org/tr/) (1.11) (HTML) (:construction: *in process*)