add r programming resources patch 1 (#10290)

* Update free-courses-hi.md

Add system design resources

* Add R programming resources

courses/free-courses-hi.md

@@ -582,6 +582,7 @@
 
 * [Complete R Programming Tutorial for Beginners to Pro [HINDI]](https://www.youtube.com/playlist?list=PLjVLYmrlmjGdmPrz0Lx7smkd0qIKHInOF) - WsCube Tech
 * [R Programming](https://www.youtube.com/playlist?list=PLWPirh4EWFpEvN4ktS8LE0cvLCSfhD55t) (Tutorials Point (India) Ltd.)
+* [R programming language(Hindi)](https://www.youtube.com/playlist?list=PLgPJX9sVy92wLyuL-rFgbjqCLgXrpIKnc) - CS Geeks
 
 
 ### Ruby