blockchain course added (#8630)

courses/free-courses-hi.md

@@ -107,6 +107,7 @@
 ### Blockchain
 
 * [Blockchain Full Course in Hindi](https://www.youtube.com/playlist?list=PLgPmWS2dQHW-BRQCQCNYgmHUfCN115pn0) - Code Eater (YouTube)
+* [Blockchain Full Course in Hindi](https://www.youtube.com/playlist?list=PLRlT7xBRpp9MiMN25XJjUVz01rGFQohq2) - Innovate India
 * [Solidity ^0.8 | Blockchain | In Hindi](https://www.youtube.com/playlist?list=PL-Jc9J83PIiG6_thChXWzolj9BEG-Y0gh) - Pepcoding (YouTube)