* Added new MOOC resource
* Changed alphabetical order
* Added a new Java course
* removed trailing slash
* Delete free-programming-books.md
seeing if I can fix this PR - apologies in advance if it messes things up
* Update courses/free-courses-en.md
Co-authored-by: David Ordás <davorpatech@gmail.com>
Co-authored-by: Eric Hellman <eric@hellman.net>
Co-authored-by: David Ordás <davorpatech@gmail.com>