removing cors proxy from aframe basic example

Author: kalwalt

aframe/examples/marker-based/basic.html

@@ -7,10 +7,10 @@
         <a-scene embedded arjs>
         <a-marker preset="hiro">
             <a-entity
-            position="0 -0.5 0.5"
-            rotation="90 0 0"
+            position="0 0 0"
+            rotation="0 0 0"
             scale="0.05 0.05 0.05"
-            gltf-model="https://arjs-cors-proxy.herokuapp.com/https://raw.githack.com/AR-js-org/AR.js/master/aframe/examples/image-tracking/nft/trex/scene.gltf"
+            gltf-model="../image-tracking/nft/trex/scene.gltf"
             ></a-entity>
         </a-marker>
         <a-entity camera></a-entity>