Does not work on Deploy EA

It uses a version of deno.land/std/http that is too old.

The best fix would be to replace:

```ts
serve(blogHandler, {
  port: blogState.port,
  hostname: blogState.hostname,
  onError: errorHandler,
});
```

With this:

```ts
Deno.serve(blogHandler, {
  port: blogState.port,
  hostname: blogState.hostname,
  onError: errorHandler,
});
```