Update Demos section (#407)

Moved updated demos from 3 -> 4.

README.md

@@ -163,19 +163,19 @@ See [Vivraan/godot-lang-support](https://github.com/Vivraan/godot-lang-support).
 
 #### Godot 4
 
+- [Godot Demo Projects](https://github.com/godotengine/godot-demo-projects) - Official Godot demo projects (everything except the TPS demo).
+- [Godot experiments](https://github.com/MrEliptik/godot_experiments) - Several 2D, 3D and VR experiments.
 - [Kaleidoscope](https://github.com/Elesh-Norn/kaleidoscope) - A demo for interactive shaders in Godot.
+- [OpenRPG](https://github.com/GDquest/godot-open-rpg) - JRPG-style game demo and template.
 - [PlaneShooter](https://github.com/sarooptech/PlaneShooter) - A 2D demo game to learn Godot 4.
+- [TPS Demo](https://github.com/godotengine/tps-demo) - Official Godot third person shooter (TPS) demo with high quality graphics.
+- [voxelgame](https://github.com/Zylann/voxelgame) - Minecraft-like voxel terrain demo, utilising the godot_voxel module.
 
 #### Godot 3
 
-- [Godot Demo Projects](https://github.com/godotengine/godot-demo-projects) - Official Godot demo projects (everything except the TPS demo).
-- [TPS Demo](https://github.com/godotengine/tps-demo) - Official Godot third person shooter (TPS) demo with high quality graphics.
-- [Godot experiments](https://github.com/MrEliptik/godot_experiments) - Several 2D, 3D and VR experiments.
-- [OpenRPG](https://github.com/GDquest/godot-open-rpg) - JRPG-style game demo and template.
 - [Open Source A-RPG Demo](https://github.com/GDQuest/godot-make-pro-2d-games) - RPG demo.
 - [Realistic Water Shader](https://github.com/godot-extended-libraries/godot-realistic-water) - Realistic 3D water shader with foam and caustics.
 - [The Tower](https://github.com/Relintai/the_tower) - A voxel-based parkour game to show the capabilities of the Voxelman module.
-- [voxelgame](https://github.com/Zylann/voxelgame) - Minecraft-like voxel terrain demo, utilising the godot_voxel module.
 
 #### Godot 2