doc-src/templates/default/layout/html/footer.erb

<div id="footer">
  Generated on <%= Time.now.strftime("%c") %> by
  <a href="http://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a>
  <%= YARD::VERSION %> (ruby-<%= RUBY_VERSION %>).
  <div id="awsdocs-legal-zone-copyright"></div>
</div>