message: less escaping for backticks
diff: @@ -47,7 +47,7 @@ function parseLink(a, room) {
  function parseCodeBlock(n) {
  const parts = [];
  - const preLines = `\`\`\`\n${n.textContent}\`\`\``.split("\n");
  + const preLines = ("```\n" + n.textContent + "```").split("\n");
  preLines.forEach((l, i) => {
  parts.push(new PlainPart(l));
  if (i < preLines.length - 1) {
  