bug in mcf

Former-commit-id: 8b70024756eaf9a0be674b7371f7cd3109ced580

tutorial/205_Laplacian/main.cpp

@@ -69,7 +69,7 @@ int main(int argc, char *argv[])
     // Send new positions, update normals, recenter
     viewer.data.set_vertices(U);
     viewer.data.compute_normals();
-    viewer.core.align_camera_center(V,F);
+    viewer.core.align_camera_center(U,F);
     return true;
   };