Git’s great! But it’s difficult to learn (it was for me, anyway) – especially the index, which unlike the power-user features, comes up in day-to-day operation. Here’s my path to enlightenment, and how I ended up using the index in my particular workflow. There are other workflows, but this one is mine. What this isn’t: a Git tutorial. It doesn’t tell you how to set up git, or use it. I don’t cove