old_contents: let md = require('markdown-it')('commonmark');
  let mk = require('markdown-it-katex');
  
  
  md.use(mk);
  
  let input = process.argv[2];
  
  console.log(md.render(input));
  
new_contents: let md = require('markdown-it')({
    html: true,           // Enable HTML tags in source
    typographer:  true,   // Enable German quotes
    quotes: '„“‚‘'
  });
  let mk = require('markdown-it-katex');
  
  
  md.use(mk);
  
  let input = process.argv[2];
  
  console.log(md.render(input));
  
subject: Configure server-side markdown-it