Update free-courses-hi.md (#8624)

* Update free-courses-hi.md

best course for competitive programming the complete video for in-depth information.

* Update courses/free-courses-hi.md

Co-authored-by: Sharan J <50091666+shrn01@users.noreply.github.com>

courses/free-courses-hi.md

@@ -160,6 +160,7 @@
 
 ### Competitive Programming
 
+* [Competitive Programming Series - Java Placement Course](https://www.youtube.com/playlist?list=PLjVLYmrlmjGfHs-LbtPOrlQHA37LFQg3S) - Wscube Tech
 * [Competitive Programming/DSA Course \| Hindi](https://www.youtube.com/playlist?list=PLauivoElc3ggagradg8MfOZreCMmXMmJ-) - Luv
 * [Full course in Competitive programming [ Hindi ] \|\| -by prince](https://www.youtube.com/playlist?list=PLzjZaW71kMwTGbP1suqY16w1VSb9ZNuvE) - Hello World
 * [Range Queries - Level 3](https://youtube.com/playlist?list=PL-Jc9J83PIiGkI_pL8l67OVvbpnwf-5yO) - Pepcoding