Adding course links from www.learnhowtoprogram.com/courses (#2330)

* Adding links to free courses from Epicodus, Inc.

* adding the new line back in

* Update free-courses-en.md: Reordering my additions

* Reordering my additions.

free-courses-en.md

@@ -25,8 +25,10 @@
 * [Machine Learning](#machine-learning)
 * [Matlab](#matlab)
 * [Misc](#misc)
+* [.NET](#net)
 * [OCaml](#ocaml)
 * [Oracle PL/SQL](#oracle-plsql)
+* [PHP](#php)
 * [Python](#python)
 * [R](#r)
 * [RethinkDB](#rethinkdb)
@@ -56,6 +58,7 @@
 ### Android
 
 * [Creative, Serious and Playful Science of Android Apps](https://www.coursera.org/course/androidapps101/)
+* [Epicodus Inc.: Learn how to program: Android](https://www.learnhowtoprogram.com/android)
 * [Material design](https://material.io/guidelines/)
 * [Programming Cloud Services for Android Handheld Systems](https://www.coursera.org/course/mobilecloudprogram)
 * [Programming Mobile Applications for Android Handheld Systems pt. 1](https://www.coursera.org/course/android)
@@ -84,6 +87,7 @@
 ### C Sharp
 
 * [Beginning Game Programming with C#](https://www.coursera.org/course/gameprogramming)
+* [Epicodus Inc.: Learn how to program: C#](https://www.learnhowtoprogram.com/c)
 
 
 ### C++
@@ -155,6 +159,7 @@
 * [Build a SaaS landing page using Skeleton](https://www.bloc.io/tutorials/jottly-a-beginner-s-guide-to-html-css-skeleton-and-animate-css)
 * [Build Dynamic Websites](http://cs75.tv/2010/fall/)
 * [Code a personal splash page in 1 hour: A Hands-on Intro to HTML & CSS](http://www.thefirehoseproject.com/lessons/splash-page)
+* [Epicodus Inc.: Learn how to program: CSS](https://www.learnhowtoprogram.com/css)
 * [Learn HTML5 Programming From Scratch](https://www.udemy.com/learn-html5-programming-from-scratch/)
 
 
@@ -167,6 +172,7 @@
 ### Java
 
 * [Central Connecticut State University, Introduction to CS Using Java](http://chortle.ccsu.edu/CS151/cs151java.html)
+* [Epicodus Inc.: Learn how to program: Java](https://www.learnhowtoprogram.com/java)
 * [Introduction to Java](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-092-introduction-to-programming-in-java-january-iap-2010/)
 * [Java for Complete Beginners](http://courses.caveofprogramming.com/courses/java-for-complete-beginners)
 * [Princeton Algorithms, Part 1](https://www.coursera.org/course/algs4partI)
@@ -177,6 +183,7 @@
 ### JS
 
 * [Egghead.io](https://egghead.io)
+* [Epicodus Inc.: Learn how to program: JavaScript](https://www.learnhowtoprogram.com/javascript)
 * [learn:query](https://learnquery.infinum.co)
 
 
@@ -223,6 +230,11 @@
 * [Stanford SEE 229 - Machine Learning](https://see.stanford.edu/Course/CS229)
 
 
+### .NET
+
+* [Epicodus Inc.: Learn how to program: .NET](https://www.learnhowtoprogram.com/net)
+
+
 ### OCaml
 
 * [Cornell's Data Structures and Functional Programming](http://www.cs.cornell.edu/courses/cs3110/2015fa/)
@@ -234,6 +246,11 @@
 * [Steven Feuerstein's PL/SQL Obsession - Videos and Presentations](http://www.toadworld.com/platforms/oracle/w/wiki/8243.plsql-obsession)
 
 
+### PHP
+
+* [Epicodus Inc.: Learn how to program: PHP](https://www.learnhowtoprogram.com/php)
+
+
 ### Python
 
 * [An Introduction to Interactive Programming in Python (Part 1)](https://www.coursera.org/learn/interactive-python-1) (Coursera)
@@ -265,6 +282,7 @@
 
 ### Ruby
 
+* [Epicodus Inc.: Learn how to program: Ruby](https://www.learnhowtoprogram.com/ruby)
 * [RubyMonk - Interactive Ruby tutorials](https://rubymonk.com)