message: Fix --serve on Windows
diff: import { Site } from "../core.ts";
  -import { dirname, extname, join, posix, relative } from "../deps/path.ts";
  +import { dirname, extname, join, posix, relative, SEP } from "../deps/path.ts";
  import { brightGreen, red } from "../deps/colors.ts";
  import { exists } from "../deps/fs.ts";
  import localIp from "../deps/local_ip.ts";
  @@ -76,7 +76,7 @@ export default async function server(site: Site) {
  let path = join(root, pathname);
  try {
  - if (path.endsWith("/")) {
  + if (path.endsWith(SEP)) {
  path += "index.html";
  }
  