Update free-courses-hi.md (#7140)

Added a playlist for Assembly language

courses/free-courses-hi.md

@@ -2,6 +2,7 @@
 
 * [Algorithms](#algorithms)
 * [Android](#android)
+* [Assembly](#assembly)
 * [Bash and Shell](#bash-and-shell)
 * [C](#c)
 * [C++](#cpp)
@@ -47,6 +48,11 @@
 * [Complete Android Development Course in Hindi](https://www.youtube.com/playlist?list=PLUhfM8afLE_Ok-0Lx2v9hfrmbxi3GgsX1) - Neat Roots
 
 
+### Assembly
+
+* [x64 Assembly Language](https://www.youtube.com/playlist?list=PL-DxAN1jsRa-3KzeQeEeoL_XpUHKfPL1u) - The Cyber Expert
+
+
 ### Bash and Shell
 
 * [Bash Basic Commands](https://youtube.com/playlist?list=PLzOLSdbK1deOKmOiiv-o4wn7xUj6ZYzrM) - Noob Coders