message: decode &amp;s
diff: @@ -4,19 +4,28 @@ import React from 'react';
  const BOLD_REGEXP = /(\*\*)(.*?)\1/;
  const LINK_REGEXP = /\[([^\[]+)\]\(([^\)]+)\)/;
  +function decodeHTMLEntities(text) {
  + var entities = [['amp', '&'], ['lt', '<'], ['gt', '>']];
  +
  + for (var i = 0, max = entities.length; i < max; ++i)
  + text = text.replace(new RegExp('&' + entities[i][0] + ';', 'g'), entities[i][1]);
  +
  + return text;
  +}
  +
  function linkify(mdString: string) {
  const parts = mdString.split(LINK_REGEXP);
  if (parts.length === 1) {
  - return parts[0];
  + return decodeHTMLEntities(parts[0]);
  }
  const result = [];
  let i = 0;
  while (i + 1 < parts.length) {
  - result.push(parts[i]);
  + result.push(decodeHTMLEntities(parts[i]));
  result.push(<a href={parts[i + 2]} target="_blank">{parts[i + 1]}</a>);
  i += 3;
  }
  - result.push(parts[parts.length - 1]);
  + result.push(decodeHTMLEntities(parts[parts.length - 1]));
  return result.filter(Boolean);
  }
  