Five things you need to know today, and I’m going to miss this place

Good morning, everyone. Stocks rallied yesterday, and here's hoping your day today is super. Here are the five things you need to know in Boston business news to start your busy Tuesday. Two Guy Fieri restaurants to open downtown Celebrity chef Guy Fieri is expanding his portfolio in Boston with two new restaurants across from Boston Common. (For more on this, scroll below.) Miracle cure? Can a rare-disease drug beat the coronavirus? A Manhattan neurologist wants to run a clinical study of an…