added free angular course in Hindi (#7620)

* added free angular course in Hindi

* added newline after the added section

* fixed lint space issue

* updated the index with Angular

courses/free-courses-hi.md

@@ -2,6 +2,7 @@
 
 * [Algorithms](#algorithms)
 * [Android](#android)
+* [Angular](#angular)
 * [Artificial Intelligence](#artificial-intelligence)
 * [Assembly](#assembly)
 * [Bash and Shell](#bash-and-shell)
@@ -72,6 +73,11 @@
 * [Complete Android Development Course in Hindi](https://www.youtube.com/playlist?list=PLUhfM8afLE_Ok-0Lx2v9hfrmbxi3GgsX1) - Neat Roots
 
 
+### Angular 
+
+* [Learn Angular in one video (Hindi)](https://www.youtube.com/watch?v=0LhBvp8qpro&list=PLu0W_9lII9ahKZ42vg2w9ERPmShYbYAB7&index=21) - Code With Harry 
+
+
 ### Artificial Intelligence
 
 * [Artificial Intelligence (Complete Playlist)](https://www.youtube.com/playlist?list=PLxCzCOWd7aiHGhOHV-nwb0HR5US5GFKFI) - Gate Smashers, `tch.:` Varun Singla