Delete a wrong html balise.

sandbox/index.html

@@ -62,7 +62,7 @@
         </div>               
         <div class="footerRight">
             <a href="#" id="btnFullscreen" class="hidden"><img src="./Assets/Icon_Fullscreen.svg" alt="Switch the scene to full screen" title="Switch the scene to full screen" /></a> 
-            <a href="#" id="btnInspector" class="hidden"><img src="./Assets/Icon_EditModel.svg" alt="Display inspector" title="Display inspector" /></i></a> 
+            <a href="#" id="btnInspector" class="hidden"><img src="./Assets/Icon_EditModel.svg" alt="Display inspector" title="Display inspector" /></a> 
             <a href="#">
                 <div class="custom-upload" title="Open your scene from your hard drive (.babylon, .gltf, .glb, .obj)">
                     <input type="file" id="files" multiple />