Update webgl_buffergeometry_glbufferattribute.html

Clean up

examples/webgl_buffergeometry_glbufferattribute.html

@@ -115,7 +115,7 @@
 
 				//
 
-				const material = new THREE.PointsMaterial( { size: 15, vertexColors: THREE.VertexColors } );
+				const material = new THREE.PointsMaterial( { size: 15, vertexColors: true } );
 
 				points = new THREE.Points( geometry, material );