Update free-courses-tr.md (#9223)

courses/free-courses-tr.md

@@ -23,6 +23,7 @@
 ### <a id='c-sharp'></a>C#
 
 * [C# Başlangıç ve İleri Düzey Eğitimi \| Console Dersleri \| Form Dersleri](https://www.youtube.com/playlist?list=PLURN6mxdcwL960S-bRuf1F6K09yzNjgcn) - Enes Bayram
+* [C# Dersleri](https://www.youtube.com/playlist?list=PLqG356ExoxZU5keiJwuHDpXqULLffwRYD) - Engin Demiroğ
 * [C# Dersleri](https://www.youtube.com/playlist?list=PLKnjBHu2xXNPkeQtMOJczzEO6LK5OV35K) - Murat Yücedağ
 * [C# Dersleri \| Visual Studio 2022 ile C# Programlama \| C# Giriş](https://www.youtube.com/playlist?list=PLi1BmHvgBkxIYweLR52cRJnit4AEEugn4) - Yazılım Teknolojileri Akademisi