title: Streaming two line graphs using bokeh
body: <p>I want to create a visualization where there are two line graphs that are updated with one new point per line graph per second.</p>
  
  <p>I have recently read about bokeh and found out that it can be used in visualizing streams of data in real-time. However, I don't know how to code in it yet. </p>
  
  <p>I would appreciate it if someone can show me how this task can be done using bokeh. Thanks!</p>