Add egui_speedy2d link to README.md (#2211)

README.md

@@ -182,6 +182,7 @@ These are the official egui integrations:
 * [`egui_winit_vulkano`](https://github.com/hakolao/egui_winit_vulkano) for [Vulkano](https://github.com/vulkano-rs/vulkano).
 * [`egui-macroquad`](https://github.com/optozorax/egui-macroquad) for [macroquad](https://github.com/not-fl3/macroquad).
 * [`egui-miniquad`](https://github.com/not-fl3/egui-miniquad) for [Miniquad](https://github.com/not-fl3/miniquad).
+* [`egui_speedy2d`](https://github.com/heretik31/egui_speedy2d) for [Speedy2d](https://github.com/QuantumBadger/Speedy2D).
 * [`egui-tetra`](https://crates.io/crates/egui-tetra) for [Tetra](https://crates.io/crates/tetra), a 2D game framework.
 * [`egui-winit-ash-integration`](https://github.com/MatchaChoco010/egui-winit-ash-integration) for [winit](https://github.com/rust-windowing/winit) and [ash](https://github.com/MaikKlein/ash).
 * [`fltk-egui`](https://crates.io/crates/fltk-egui) for [fltk-rs](https://github.com/fltk-rs/fltk-rs).