Update free-courses-hi.md (#8284)

Added a free MongoDB course playlist

courses/free-courses-hi.md

@@ -324,6 +324,7 @@
 ### Mongo DB
 
 * [Mongo DB full course for beginners](https://youtube.com/playlist?list=PLwGdqUZWnOp1P9xSsJg7g3AY0CUjs-WOa) -Thapa Technical
+* [MongoDB Tutorial in Hindi 2022](https://www.youtube.com/playlist?list=PLQDioScEMUhkcqbgJ4ap2k4zg3sT_-Bbc) - Programming Experience
 
 
 ### Natural Language Processing