Update free-courses-tr.md (#8906)

courses/free-courses-tr.md

@@ -14,6 +14,7 @@
 ### Algoritmalar
 
 * [Algoritmalara giriş](https://acikders.tuba.gov.tr/course/view.php?id=133) - Charles Leiserson / Erik Demaine (Çev. Ali Yazıcı - Haluk Ar)
+* [Algoritmaları Anlamak](https://www.youtube.com/playlist?list=PLR_3k5Bkz0SBA9PoV6DrxpghD7pqPScGJ) - Fatih Özkaynak
 
 
 ### HTML and CSS