text: document.addEventListener('DOMContentLoaded', function() {
      renderMathInElement(document.body, {
        delimiters: [
          {left: '$$', right: '$$', display: true},
          {left: '$', right: '$', display: false},
          {left: '\\(', right: '\\)', display: false},
          {left: '\\[', right: '\\]', display: true},
        ],
      });
    });