Merge pull request #978 from avinoth/master

Removed false link and sorted things..

README.md

@@ -44,8 +44,8 @@ It's [easy](https://github.com/vhf/free-programming-books/wiki/Contribution). Pl
 + Portuguese (Portugal): [github](/free-programming-books-pt_PT.md)
 + Romanian (Romania): [github](/free-programming-books-ro.md)
 + Russian: [github](/free-programming-books-ru.md)
-+ Turkish: [github](/free-programming-books-tr.md)
 + Spanish: [github](/free-programming-books-es.md)
++ Turkish: [github](/free-programming-books-tr.md)
 + Ukrainian: [github](/free-programming-books-ua.md)
 
 

free-programming-books.md

@@ -1392,9 +1392,8 @@ See also [TeX](#tex)
 
 
 ####Flask
-* [Explore Flask](http://exploreflask.com/) (PDF)
-* [The Flask Mega-Tutorial](http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world) - Miguel Grinberg
 * [The Flask Blog tutorial](http://pypix.com/python/building-flask-blog-part-1/) - Pypix
+* [The Flask Mega-Tutorial](http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world) - Miguel Grinberg
 
 
 ####Pandas
@@ -1480,9 +1479,9 @@ See also [TeX](#tex)
 
 
 ###Sage
-* [The Sage Manuals](http://sagemath.org/doc/)
 * [Sage for Newbies](http://sage.math.washington.edu/home/tkosan/newbies_book/) - Ted Kosan
 * [Sage for Power Users](http://modular.math.washington.edu/books/sagebook/sagebook.pdf) (PDF) - William
+* [The Sage Manuals](http://sagemath.org/doc/)
 
 
 ###Scala