Eleventy's Cool URIs

While getting started with 11ty, I saw in the output folder that an index.md file would become index.html, as expected, but README.md became README/index.html. I didn't understand why there was a special case for the README file.

It took me a minute, but I found it with a reference to an article at the W3C stating (among other things) that cool URIs don't have file extensions.

Okay. I get it. I would've expected something like that to be my job, not the tool's, but it makes sense and I agree. But what do I do if I really want to have a named output file. There's gotta be a way. Well, scroll down. The permalink front matter value allows me to specify the relative URL of the file that will be generated.