Yeah I think it's due to the (mis)use of quoted text to indent some paragraphs, which means there are vertical bars all over the place. The additional horizontal lines don't help much either. I think if he removes that it would look relatively clean, like a README.md on GitHub. Here's the source of the example by the way: https://gist.githubusercontent.com/awalGarg/a8e97b27b249f2c9...