[en] Sorting Emacs section

free-programming-books.md

@@ -748,9 +748,9 @@
 
 
 ###Emacs
-* [GNU Emacs Manual, 17th Edition, v. 24.2](http://shop.fsf.org/product/Emacs_Manual_24/)
 * [An Introduction to Programming in Emacs Lisp, 3rd Edition](https://www.gnu.org/software/emacs/manual/html_node/eintr/index.html)
 * [GNU Emacs Lisp Reference Manual](http://www.gnu.org/software/emacs/manual/elisp.html)
+* [GNU Emacs Manual, 17th Edition, v. 24.2](http://shop.fsf.org/product/Emacs_Manual_24/)
 
 
 ###Erlang