* Update free-courses-en.md

* Added 2 open online courses and a book for ML

Added two open online courses in MOOC and added a book for machine learning

* Remove trailing slash 

Remove trailing slash

* Alphabetical ordering of courses

* Removed extra space

* Removed the ML book

* Added free tutorial for Javascript

* Free Online Course for Javascript in english

* Added name of the course

* Node.js free course

* Updated courses

* Updated courses in hindi

* Added node js tutorial in english

* Removed extra line

* fix: use resource titles as-is

Apply review suggestion: https://github.com/EbookFoundation/free-programming-books/pull/5899#r727540465Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>
Co-authored-by: NEric Hellman <eric@hellman.net>