Update link to the repo

index.html

@@ -26,7 +26,7 @@
     <!-- Our <canvas> will be inserted here -->
   </div>
   <div id="controls" style="visibility:hidden">
-    <div style="z-index: 1; color:white; position: absolute; top: 20px; width: 100%; text-align: center; font-family: sans-serif">A 3D image with just a browser and a webcam [<a style="color: white" href="https://github.com/vivien000/trompeloeil">code</a>]<br>Press "C" to keep only the 3D image</div>
+    <div style="z-index: 1; color:white; position: absolute; top: 20px; width: 100%; text-align: center; font-family: sans-serif">A 3D image with just a browser and a webcam [<a style="color: white" href="https://github.com/vivien000/trompeloeil" target="_blank" rel="noopener noreferrer">code</a>]<br>Press "C" to keep only the 3D image</div>
     <div id="video-container" style="position:absolute; left:0; bottom:0;">
       <video autoplay="true" style="width:200px; margin:10px;" id="video">
       </video>