Added new free courses (#7517)

* Added new free courses

* Added new free courses

* fix: YT videos/playlists don't need notes

Co-authored-by: Eric Hellman <[email protected]>

Co-authored-by: David Ordás <[email protected]>
Co-authored-by: Eric Hellman <[email protected]>

Author: 3 people

courses/free-courses-en.md

@@ -1119,6 +1119,7 @@
 * [Introduction to Professional Web Development in JavaScript](https://education.launchcode.org/intro-to-professional-web-dev/) - Chris Bay, Jim Flores, Blake Mills, Sally Steuterman, Paul Matthews, Carly Langlois (The LaunchCode Foundation)
 * [Java Web Development](https://education.launchcode.org/java-web-development/) - Chris Bay, Jim Flores, Carly Langlois, Sally Steuterman (The LaunchCode Foundation)
 * [Learn web development](https://developer.mozilla.org/en-US/docs/Learn) - Mozilla Contributors
+* [Programming & Web Development Crash Course](https://www.youtube.com/playlist?list=PLillGF-RfqbYeckUaD1z6nviTp31GLTH8) - Traversy Media
 * [Python Web Scraping & Crawling using Scrapy](https://www.youtube.com/playlist?list=PLhTjy8cBISEqkN-5Ku_kXG4QW33sxQo0t)
 * [The Odin Project - Learn Web Development for Free](http://www.theodinproject.com)
 * [Web Basics](https://open.cs.uwaterloo.ca/web-basics/) - Centre for Education in Math and Computing (University of Waterloo)