Update free-courses-hi.md (#10565)

* Update free-courses-hi.md

Added a C++ tutorial playlist in hindi

* Update free-courses-hi.md

* Update free-courses-hi.md

Author: biswabaibhab007

Diff for: courses/free-courses-hi.md

@@ -186,6 +186,7 @@
 * [C++ STL \| Competitive Programming](https://youtube.com/playlist?list=PLauivoElc3gh3RCiQA82MDI-gJfXQQVnn) - Luv
 * [C++ Tutorial For Begineers In Hindi](https://www.youtube.com/playlist?list=PLnSDvcENZlwA6YDSfoieM1bl-Y3ALcnL5) - Abhishek Shrivastava, Micro Solution
 * [C++ Tutorial for Beginners \| C++ Tutorials In Hindi](https://www.youtube.com/playlist?list=PLmGElG-9wxc8VMy1nNHDQldH2dU8Y08s7) - Manish Gehlot, WsCube Tech Programming Concepts
+* [C++ Tutorial In Hindi](https://www.youtube.com/playlist?list=PLhvdldYcnZMl3Smc6ANF6rO56ORgwb46g) - Coding Wallah Sir
 * [C++ Tutorials In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9agpFUAlPFe_VNSlXW5uE0YL) - CodeWithHarry
 * [The Complete C++ Course \| Hindi](https://www.youtube.com/playlist?list=PLLYz8uHU480j37APNXBdPz7YzAi4XlQUF) - Saurabh Shukla