Images not found - Neural Bag of Words notebook

In [Neural Bag of Words](https://github.com/bentrevett/pytorch-sentiment-analysis/blob/main/1%20-%20Neural%20Bag%20of%20Words.ipynb) notebook, section **Creating a Vocabulary**,
there is links to _assets/vocabulary.png_ and _assets/padding.png_ but there is no such images in [assets](https://github.com/bentrevett/pytorch-sentiment-analysis/tree/main/assets) directory. 