* reorganize files

1. make it easier to find files
2. reduce scrolling to get to README on main view of repo

* remove tr.txt again

* Add Full Stack Open course [fi]

* Update free-courses-fi.md
Co-authored-by: Nkadhirash <kadhirash@gmail.com>
Co-authored-by: Nkadhirash <kadhirash@gmail.com>

* Add Koodiaapinen

* Remove trailing slash from url

* Revert trailing slashes

* Add Koodiaapinen

* Remove trailing slash from url

* Add finnish podcasts

* Update free-courses-fi.md

* Update free-podcasts-screencasts-fi.md

* Update README.md

* New AI course

* New Finnish AI course

* Elements of AI course in German

* Trailing slash fix

* Trailing slash fix

* Added free finnish online courses

* Alphabetical order and removed unnecessary lines

* Adjusted lines

* Remove trailing slash