Fix heading

free-courses-en.md

@@ -57,6 +57,11 @@
 * [Introduction to Computer Science](https://www.edx.org/course/introduction-computer-science-harvardx-cs50x#.VNsjDvmUcmQ)
 
 
+### C\#
+
+* [Beginning Game Programming with C#](https://www.coursera.org/course/gameprogramming)
+
+
 ### C++
 
 * [Google's C++ Course](https://developers.google.com/edu/c++/)
@@ -64,11 +69,6 @@
 * [LearnCpp.com C++ Tutorial](http://www.learncpp.com)
 
 
-### C#
-
-* [Beginning Game Programming with C#](https://www.coursera.org/course/gameprogramming)
-
-
 ### Clojure
 
 * [Functional Programming with Clojure](http://mooc.fi/courses/2014/clojure/index.html)