title: Heatmap not supporting Arabic alphabet
body: <p>i can not display Arabic alphabet in y axis in heat map 
  this is my code </p>
  
  <pre><code>import seaborn as sns; sns.set()
  heat = Heating_map.pivot("ISIC4_ARABIC", "BUSINESS_CATEGORY", "Yes")
  
  import matplotlib.pyplot as plt
  
  plt.figure(figsize = (25,15))
  
  ax = sns.heatmap(heat, cmap='coolwarm', linewidths=1, annot=True, vmax=5, fmt='.1f', square=True, cbar=True)
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/X7aAP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/X7aAP.png" alt="enter image description here"></a></p>