This must be viewed locally on a server. Firstly, open the command line to this folder and type
python -m http.server if you have Python 3. By default, it will automatically host the pages on http://localhost:8000/. Click on either html file to view them.
That's it! The rest of the visualization is self-explanatory. The groups labeled on the visualization are the same as the groups labeled using igraph's community detection functions.