Updated the free-courses.md file(Changes Made) (#10724)

* Added the ethereum course

* Changes made"

courses/free-courses-hi.md

@@ -147,6 +147,7 @@
 * [Blockchain Full Course in Hindi](https://www.youtube.com/playlist?list=PLgPmWS2dQHW-BRQCQCNYgmHUfCN115pn0) - Code Eater
 * [Blockchain Full Course in Hindi](https://www.youtube.com/playlist?list=PLRlT7xBRpp9MiMN25XJjUVz01rGFQohq2) - Innovate India
 * [Complete Blockchain Development Course for Beginners in Hindi](https://www.youtube.com/watch?v=RkYVVC2vXho) - web3Mantra
+* [Ethereum](https://www.youtube.com/playlist?list=PL-Jc9J83PIiE3QA0h3I6HDYNXejdPFKFN) - Pepcoding
 * [Solidity ^0.8 | Blockchain | In Hindi](https://www.youtube.com/playlist?list=PL-Jc9J83PIiG6_thChXWzolj9BEG-Y0gh) - Pepcoding