Update index.html

public/index.html

@@ -71,7 +71,7 @@ loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/re
 })
 
 let flower;
-loader.load("https://transfer.hft-stuttgart.de/gitlab/22kona1mpg/augmentedreality/-/tree/master/gltf/Cylinder.glb", function(gltf) {
+loader.load("https://transfer.hft-stuttgart.de/gitlab/22kona1mpg/augmentedreality/-/tree/master/gltf/Cylinder.gltf", function(gltf) {
   flower = gltf.scene;
 });