Added a course for solidity in Hindi (#11476)

* Added a course for solidity in Hindi

* Update free-courses-hi.md

courses/free-courses-hi.md

@@ -767,6 +767,7 @@
 
 * [Solidity ^0.8 \| Blockchain \| In Hindi](https://www.youtube.com/playlist?list=PL-Jc9J83PIiG6_thChXWzolj9BEG-Y0gh) - Pepcoding
 * [Solidity Full Course](https://www.youtube.com/playlist?list=PLgPmWS2dQHW9u6IXZq5t5GMQTpW7JL33i) - Code Eater
+* [Solidity full course for beginners in Hindi](https://www.youtube.com/playlist?list=PLR0uCBk15bq9a__TgfcZ7oA73MTEZ3NOK) - web3Mantra
 
 
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