in _plugins/read.rb [51:65]
def render_jekyll(context, filename)
file = load_file(context, filename, context['page'] || context.registers[:page])
jekyllSite = context.registers[:site]
targetPage = Jekyll::Page.new(jekyllSite, jekyllSite.source, File.dirname(file), File.basename(file))
relative_link_parser = JekyllRelativeLinks::Generator.new(nil)
relative_link_parser.prepare_for_site(jekyllSite)
relative_link_parser.replace_relative_links!(targetPage)
targetPage.render(jekyllSite.layouts, jekyllSite.site_payload)
targetPage.output
end