If you publish a blog using GitHub pages, it's now easier for others to subscribe to updates. The Jekyll Feed plugin, now available to all GitHub Pages sites, can automatically generate an Atom (RSS-like) feed of your most recent posts.
While it's always been possible to generate feeds using hand-written XML, the Jekyll Feed plugin includes a battle-tested template that handles things like encoding issues and relative URLs, allowing you to concentrate on what matters: your content.
For more information, including installation instructions, see the Feeds for GitHub Pages help article.
Happy syndicating!