How Bitcoin Blockchain actually work video added (#3684)

* How Bitcoin Blockchain actually work video added

* Delete package-lock.json

src/data/roadmaps/blockchain/content/100-blockchain-basics/104-basic-blockchain-operations.md

@@ -5,6 +5,7 @@ Operations in a decentralized networks are the responsibility of the peer partic
 Visit the following resources to learn more:
 
 - [Blockchain Basics: Structure, Operations, and the Bitcoin Blockchain](https://www.mlq.ai/blockchain-basics/)
+- [How Bitcoin blockchain actually work (Video)](https://www.youtube.com/watch?v=bBC-nXj3Ng4)
 - [Bitcoin blockchain transactions | Bitcoin Developer](https://developer.bitcoin.org/reference/transactions.html)
 - [Ethereum blockchain transactions | ethereum.org](https://ethereum.org/en/developers/docs/transactions/)
 - [Blockchain Basics | Coursera](https://www.coursera.org/lecture/blockchain-basics/basic-operations-OxILB)