Yes, I completely agree. I've seen so many cool ideas out there that are largely a failure of "marketing", which is basically the fist few lines of the README.

Yes, I completely agree. I've seen so many cool ideas out there that are largely a failure of "marketing", which is basically the fist few lines of the README.md. I always encourage junior devs to include some lines of code to do a "hello world", or a screenshot if it's something graphical, or both, _as early as possible_ in the README, so as to show the casual reader what their project is all about.