Not getting vdo

I am not getting the lecture of this code https://github.com/coding-blocks-archives/machine-learning-online-2018/blob/master/16.%20CNN/Simple_MNIST_CNN.ipynb
Please provide me

hi @sarveshkrg
in cnn we are training on fashion mnist
this ones for mnist dataset
this is on repository to compare the performance of different algorithms like knn , naive bayes to compare it with cnns
there no video in course for it refer fashion mnist for details