* Updating free courses(en)

* Updating free courses(en)

* Update courses/free-courses-en.md #1Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* Update courses/free-courses-en.md #2
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* Update free-courses-en.md

I believe I've made all the necessary changes🙃

* Update free-courses (hi)
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>