message: added content type to 404 response for serve
diff: @@ -128,7 +128,11 @@ fn static_file_handler(dest: &path::Path, req: Request) -> Result<()> {
  // write a simple body for the 404 page
  req.respond(
  Response::from_string("<h1> <center> 404: Page not found </center> </h1>")
  - .with_status_code(404),
  + .with_status_code(404)
  + .with_header(
  + tiny_http::Header::from_str("Content-Type: text/html")
  + .expect("formatted correctly"),
  + ),
  )?;
  }
  