feature request: rss / atom feed

[sls]

I'd love to follow your blog on my feed reader, but if there's a way to do so now, I can't find it. I've tried the well-known routes and looked at github pages docs to see if this is auto-generated but to no avail.

If you would accept a pr for a specific way of adding this but don't want to spend the time, you could reply here and I could take a look at it.