Some questions I found in this tutorial

[HelloWorldLTY]

Hi, this is a nice tutorial. However, I find that there are some minor problems with the materials.

1. I fond that they are same links so I think you can delete one.
   
2. In the node2vec practice colab notebook, the current installation requirement will lead the colab environment to break down. I tried this combination and it works:
   
   Could you please figure out why? Thanks a lot!