Well to be honest, what that article is promoting a scam. The first link is a link about how MINING mints coins and doesn't even mention the lending process recommended. The process mentioned is bitconnect, do some research (on youtube even) on them and you'll find that is a complete scam and ponzi scheme.
Thanks for the feedback but again, the only way to MINT bitcoin or other currencies is through mining it. Now, there are coins that you can "stake" and earn income off of by simply owning them. I was actually going to make an article soon about that! Those coins use the process Proof of Stake (PoS) as apposed to mining in order to confirm transactions.
Thanks for the comment it means a lot!