Embed your GitHub gists into your Jekyll posts and pages, just by including the gist url.
Totally copied from https://github.com/takuti/jekyll-lazy-tweet-embedding and made to work with gists.
Just put a standard gist URL like https://gist.github.com/jaygooby/7e24a1e112ce3953812624b8be94e686 in your post, and it will expand into a gist embed.
Works with markdown and html posts.
Copy lazy_gist_embedding.rb into the _plugins directory and Jekyll will automatically expand the gist into an embed.
Under the hood, it fetches the .js embed code, for instance https://gist.github.com/jaygooby/7e24a1e112ce3953812624b8be94e686 becomes https://gist.github.com/jaygooby/7e24a1e112ce3953812624b8be94e686.js and then is injected into your post with <script> tags.