message: Fix misnaming of `EventLoop` in HelloGgez guide
  The text and link were referring to `EventsLoop`, which seems to have been its name prior to winit 0.20.0.
diff: @@ -162,7 +162,7 @@ let (ctx, event_loop) = ContextBuilder::new("hello_ggez", "awesome_person")
  ```
  This will create a `Context` with the `game_id` `hello_ggez` and the author `awesome_person`.
  -It will also create an [`EventsLoop`](https://docs.rs/ggez/0.7.0/ggez/event/struct.EventsLoop.html).
  +It will also create an [`EventLoop`](https://docs.rs/ggez/0.7.0/ggez/event/struct.EventLoop.html).
  We'll need it in a minute to call [`run`](https://docs.rs/ggez/0.7.0/ggez/event/fn.run.html).
  Feel free to replace the author with yourself.
  You are awesome after all.
  