title: How to set title and ylims for subplots in seaborn
body: <p>I have such code which draws 2 subplots. I want set  ylim and title for both subplots , but it applits only to the last subplot.</p>
  
  <pre><code>   TREATMENTINSTIDs = atg_cg.TREATMENTINSTID.unique()
      sn.set_style('ticks')
      fig, ax = plt.subplots(nrows = 2,ncols = 1)
      fig.set_size_inches(10, 12)
      i = 0
      #plt.title(TREATMENTINSTID)
  
      for TREATMENTINSTID in TREATMENTINSTIDs:
          plt.title(TREATMENTINSTID)
          plt.ylim(0, 1000)
          sn.violinplot(x="group_type", y="arpu" , hue = 'isSMS',ax=ax[i],cut=0, 
                        data=atg_cg[atg_cg.TREATMENTINSTID == TREATMENTINSTID],inner="quartile", split=True, title = TREATMENTINSTID)
          sn.despine(left=True)
          i = i + 1
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/WIA7y.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WIA7y.png" alt="enter image description here"></a></p>
  
  <p>What is wrong here? And why first subplot is floating or soaring above x axis?</p>