title: Holoviews example: How to display plot in Jupyter notebook?
body: <p>I am trying out Holoviews for the first time, and I'd like to reproduce this animated "Gapminder" plot as described <a href="http://holoviews.org/gallery/apps/bokeh/gapminder.html" rel="nofollow noreferrer">here</a>.</p>
  
  <p>The code runs but I do not know how to handle the output so that it is displayed in a Jupyter Notebook (I assume that is possible, since Jupyter can display arbitrary HTML).</p>
  
  <pre><code># Get HoloViews plot and attach document
  doc = curdoc()
  hvplot = BokehRenderer.get_plot(hvgapminder, doc)
  
  # Make a bokeh layout and add it as the Document root
  plot = layout([[hvplot.state], [slider, button]], sizing_mode='fixed')
  doc.add_root(plot)
  </code></pre>
  
  <p>Specifically, what should I do with the resulting <code>doc</code> or <code>hvplot</code> objects?</p>