title: List of locationmode to use with plotly
body: <p>I need to make a graphical representation of data distributed in Brazil, which is my country.</p>
  
  <p>I found that <code>plotly</code> can do this job, but when I went to research how to use plotly, every tutorial was using the <code>locationmode</code> attribute as 'USA-states'.</p>
  
  <p>Is there a list with countries codes, so I can go after to see which is the right way of calling it?</p>