A few years ago, Jennifer Bourn looked back on 10 years of creating websites and realized she had sold more than $1 million in extra web design projects. This was beyond her bread and butter work of website development. But more than a great headline about a million dollars, it’s a great lesson in how to sell web design. Most people don’t like to sell. It can feel gross, and freelancers especially like to avoid that necessary evil. But if…