Book Part II Exercises

Hello, thank you for the great book.
I just have a small issue that lots of exercises are not solved, yet and I truly understand as there are new parts. I just propose that may you add some hints in the exercises in jupyter notebooks, so we understand what we are trying to accomplish (e.g. train a DNN on cifar10 dataset and you must reach above 80% accuracy). Something like that at each point, so we try our best to reach that objective even if the problems are not fully solved. Thank you sir!