TODO: File Or Fix A Docusaurus Bug
This markdown link works,
but this [one](https://docusaurus.io/) doesn't, because there's no empty line separating it from the<!--truncate-->
Also, if you remove the blank line above the above code-block, it also fails to be recognized.
Also, I can submit a patch to be type aware, if this hasn't already been fixed:
let port = +process.env.PORT || 3000;
if (!Number.isInteger(port)) throw new Error(`FAIL: invalid PORT=${port}`);