* podcast and course sources were added for turkish and english content.
* alphabetic order for the course of Turkish.
* marking configuration were edited and it's valid for the project.
* stackoverflow podcast link was changed.
* turkish podcast link was changed. turkish course content order was changed. html-css section merged. the name of two section changed as ide-editor and version control systems.
* trendyol podcast link changed.
* removing trailing slash of the trendyol podcast link.
* Added Turkish Podcast with free-podcasts-screencasts-tr.md
* added some turkish podcasts to free-podcasts-screencasts-tr.md
* put list alphabetically
* put list alphabetically last time
* trailing slashes
Co-authored-by: Eric Hellman <eric@hellman.net>
Ender Ahmet Yurt
Özer Öztürk
Eric Hellman
Özkan Öztürk