There's a problem with your "For Designers/For Bloggers" section of the page rendering in Safari. The sections should be rendering side by side, I assume, but are vertically stacked instead.

Also, if you want to convince me to switch to Caddy from Nginx, perhaps a page with succinct explanation of its advantages would be helpful?

Lastly, this is just my opinion, but I don't want my web server to have a Markdown interpreter in it. That's not a job for the web server. It's very easy to put a very simple index file in front of Markdown to provide that functionality.