title: How to use Latex in new Jekyll? (Gem-based theme minima)
body: <p>Both <a href="https://jekyllrb.com/docs/extras/" rel="nofollow noreferrer">https://jekyllrb.com/docs/extras/</a> and <a href="http://www.gastonsanchez.com/visually-enforced/opinion/2014/02/16/Mathjax-with-jekyll/" rel="nofollow noreferrer">http://www.gastonsanchez.com/visually-enforced/opinion/2014/02/16/Mathjax-with-jekyll/</a> require <code>_layout</code> directory, which couldn't found. Kramdown <a href="https://kramdown.gettalong.org/syntax.html#block-boundaries" rel="nofollow noreferrer">https://kramdown.gettalong.org/syntax.html#block-boundaries</a> although has been set in <code>_config.yml</code> doesn't work either.</p>
  
  <p>Can anyone help?</p>