Update README with a more up-to-date code sample

[Jasper-Bekkers]

No description provided.

[dbr]

Hmm, I think the current example is correct - the general approach (mentioned in the 0.9 tracking issue) is that everything gets built by methods on imgui::Ui

So imgui::Window::new is deprecated, and ui.window("Hello World") is the way :

imgui-rs/imgui/src/window/mod.rs

Lines 187 to 188 in 3e531ed

	#[deprecated(since = "0.9.0", note = "use ui.window(...) instead")]
	pub fn new(ui: &'ui Ui, name: Label) -> Self {

[Jasper-Bekkers]

I see - makes sense why it doesn't work with the latest stable release then ;-)

[dbr]

Ahhh, right! Yes the readme and examples will be a little confusing until the next release 😬 Need to make sure to view them via the previous tag, https://github.com/imgui-rs/imgui-rs/tree/v0.8.2