message: Tiny typo
  Fixed a tiny typo in the first block of code.
diff: @@ -23,7 +23,7 @@ impl ggez::event::EventHandler for State {
  fn update(&mut self, _ctx: &mut Context) -> GameResult {
  Ok(())
  }
  - fn draw(&mut self, _ctx: &mut Context) -> GameResult {
  + fn draw(&mut self, ctx: &mut Context) -> GameResult {
  graphics::present(ctx)?;
  Ok(())
  }
  