text: Title: [BUG] hop chain demo bug
  Body: in https://github.com/graphistry/pygraphistry/blob/master/demos/more_examples/graphistry_features/hop_and_chain_graph_pattern_mining.ipynb
  
  line: `        'to': names[j],`
  
  should be: `        'to': data[0]['usernameList'][j],`
  
  ---
  
  plots should be regenerated etc, or at least that line of code edited and plots preserved