webgpu_sandbox: fix commented line

examples/webgpu_sandbox.html

@@ -227,7 +227,9 @@
 
 			}
 
-			/** Correct UVs to be compatible with `flipY=false` textures. */
+			/*
+			 * Correct UVs to be compatible with `flipY=false` textures.
+			 */
 			function flipY( geometry ) {
 
 				const uv = geometry.attributes.uv;