Update free-programming-interactive-tutorials-en.md (#3157)

free-programming-interactive-tutorials-en.md

@@ -7,7 +7,6 @@
 * [Clojure](#clojure)
 * [CoffeeScript](#coffeescript)
 * [Erlang](#erlang)
-* [F#](#f-sharp)
 * [Git](#git)
 * [GLSL](#glsl)
 * [Go](#go)
@@ -72,11 +71,6 @@
 * [Try Erlang](http://www.tryerlang.org)
 
 
-### F Sharp
-
-* [Try F#](http://www.tryfsharp.org)
-
-
 ### Git
 
 * [Githug](https://github.com/Gazler/githug) (Tutorial in shell)