Update on the English Notebook

[niranjanakella]

I have done minor modifications to the English Jupyter notebook, so that it doesn't give the "align_images.py script not found" error. And also updated the import section to incorporate the "imageio-ffmpeg" & pyyaml==5.4.1.

By applying the above mentioned updates, the notebooks shall work without any errors.

I also suggest you to send these useful jupyter notebooks to the "First Order Model" creators at "https://github.com/AliaksandrSiarohin/first-order-model" , so that it can be utilized by more people.

Thank you very much for your valuable contributions.

[niranjanakella]

If the changes are fine by you, then also please do apply them to your colab notebook and update the README.md file too.