Please clone the repo and install the packages listed in requirements.txt
The notebook is programmed to use tensorflow with GPU. This has numerous requirements including an NVIDIA GPU and the installment of CUDA. You can find more information here https://towardsdatascience.com/installing-tensorflow-with-cuda-cudnn-and-gpu-support-on-windows-10-60693e46e781 in order to set up your system to run tensorflow on GPU.
You can find my blog post about this notebook at https://sbellowsdatascience.wordpress.com/2020/06/02/machine-translation-baby-google-translate/