Update free-courses-hi.md (#10304)

added Master NodeJS playlist by Piyush Garg

courses/free-courses-hi.md

@@ -400,6 +400,7 @@
 
 #### Node.js
 
+* [Master NodeJS](https://www.youtube.com/playlist?list=PLinedj3B30sDby4Al-i13hQJGQoRQDfPo) - Piyush Garg
 * [Node JS](https://www.youtube.com/playlist?list=PLbGui_ZYuhiiSVvVP_9w57-aU7kx_H9bu) - Geeky Shows
 * [Node.js Tutorial in Hindi](https://www.youtube.com/playlist?list=PLgOUQYMnO_SRqPikOJBu5G1ld4bJUZCmy) - truecodex
 * [Node.js Tutorials for Beginners in Hindi](https://www.youtube.com/playlist?list=PLUVqY59GNZQNCk_D9VW_zNh60WuQIzo3K) - Tutorials Website