Update web demo url.

README.md

@@ -270,7 +270,6 @@ Thats it! You can now see the magic:
 
 ![simple_cube_example_1](https://github.com/nilaysavant/bevy_pmetra/assets/47603308/babf4647-ab9b-4da4-a1f2-0254b0e30bf3)
 
-
 > [!TIP]
 > For more sophisticated examples, checkout the models in the demo:
 > [`pmetra_demo/src/utils/cad_models`](https://github.com/nilaysavant/bevy_pmetra/tree/master/pmetra_demo/src/utils/cad_models)
@@ -283,4 +282,4 @@ Thats it! You can now see the magic:
 
 [bevy-website]: https://bevyengine.org/
 [truck-github]: https://github.com/ricosjp/truck
-[pmetra-demo-web]: pmetra.vercel.app
+[pmetra-demo-web]: https://pmetra.nilay.cc/