Create remark plugin

🌱 This post is in the growth phase. It may still be useful as it grows up.

function exchange_relative_links_with_absolute() {
  return (tree) => {
    visit(tree, (node) => {
      if (
        ["link", "definition"].includes(node?.type) &&
        node.url.startsWith("/")
      ) {
        node.url = new URL(node.url, site).toString();
      }
    });
  };
}