I think I'd also like an option for the code window to be at the bottom. Generally when I'm reading blogs/articles on my phone I put the line of text I'm reading at the top of my screen.

The code being up the top felt like it was in the way of where I was naturally expecting the line I wanted to read was.

Also, I think this is great! Definitely something I'd want for my documentation.

This is great feedback, not something I initially considered. I've add it to my todo list