Feature suggestion: introduction to staking for noobs #162

What is Cardano staking, how to stake with SPOs and why, and how to pick a good a SPO for returns and decentralization.

I think the left menu should have a section "getting started" to quickly help noobs stake their ADA the right way. Then we could link them to this introduction and they would have an all in one for understanding pools and picking the right one all in one link. What motivated me is that I just saw a noob ask how to stake ADA and someone else replied that Coinbase does it automatically if they go there... Defeats the true purpose of pools decentralization.