Update README.md - change imgui-sfml link (#2345)

Changed link from https://github.com/EliasD/sfml to https://github.com/eliasdaler/sfml (no redirect + more reliable)
diff --git a/docs/README.md b/docs/README.md
index dd7aa18..d1c1c27 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -150,7 +150,7 @@
 - Magnum: [ImGuiIntegration](https://doc.magnum.graphics/magnum/namespaceMagnum_1_1ImGuiIntegration.html) ([example](https://doc.magnum.graphics/magnum/examples-imgui.html))
 - NanoRT: [syoyo/imgui](https://github.com/syoyo/imgui/tree/nanort)
 - Qt: [imgui-qt3d](https://github.com/alpqr/imgui-qt3d) / [QOpenGLWindow (qtimgui)](https://github.com/ocornut/imgui/issues/1910) / [QtDirect3D](https://github.com/giladreich/QtDirect3D) / [qt6](https://github.com/alpqr/qvk6/tree/imgui/examples/rhi/imguidemo)
-- SFML: [imgui-sfml](https://github.com/EliasD/imgui-sfml)
+- SFML: [imgui-sfml](https://github.com/eliasdaler/imgui-sfml)
 - Software renderer: [imgui_software_renderer](https://github.com/emilk/imgui_software_renderer)
 - Unreal Engine 4: [segross/UnrealImGui](https://github.com/segross/UnrealImGui) or [sronsse/UnrealEngine_ImGui](https://github.com/sronsse/UnrealEngine_ImGui)