Update free-courses-hi.md (#10500)

Added a  new youtube playlist for Go Lang in hindi.

courses/free-courses-hi.md

@@ -317,6 +317,7 @@
 
 ### Golang
 
+* [Go Lang Tutorials for Beginners in Depth](https://www.youtube.com/playlist?list=PL8fnAiiuQeFtg3ztGNquEb4Oh-WZxVPUv) - Go Guru
 * [Go Lang Tutorials in HINDI](https://www.youtube.com/playlist?list=PL45_xGOyv4bk55CMmqH6S6vvnwKD8qifD) - Coder Singh
 * [Go programming (GoLang) Tutorial for Beginners in Hindi](https://www.youtube.com/playlist?list=PLEtkoO2np9szq1XDH1Mfr36Fg5EXh-z20) - Host Progrmming
 * [Go programming Tutorial for Beginners(Hindi)](https://www.youtube.com/playlist?list=PLgPJX9sVy92yu7If3I7GonlWA8YU1BuAk) - CS Geeks