Erorr in seminar01/backprop/adaptive_sgd

Some cells in `seminar01/backprop/adaptive_sgd/adaptive_sgd.ipynb` contains  `visualize(X[ind,:], y[ind], w, loss, n_iter)` instead of `visualize(X[ind,:], y[ind], w, loss)`. The first one should be replaced with the second one. 