Fix mistake in 0.8 changelog
- Added `Window::set_maximized`, `WindowAttributes::maximized` and `WindowBuilder::with_maximized`.
- Added `Window::set_fullscreen`.
-- Changed `with_fullscreen` to take a `FullscreenState` instead of a `MonitorId`.
+- Changed `with_fullscreen` to take a `Option<MonitorId>` instead of a `MonitorId`.
- Removed `MonitorId::get_native_identifer()` in favor of platform-specific traits in the `os`
module.
- Changed `get_available_monitors()` and `get_primary_monitor()` to be methods of `EventsLoop`
