Building an Ethereum private blockchain

hey everyone,
i have written an article about how to build a private ethereum blockchain on LinkedIn that i wanted to share here but it doesn't look as good on steemit so i will share the link to it

https://www.linkedin.com/pulse/building-ethereum-private-blockchain-m-heni-merzouki/

hope it helps anyone interested in developing ERC20 tokens on top of ethereum

cheers.
Mheni