title: How to create minor ticks for polar plot matplotlib
body: <p>I am interested in the following two things for the polar plot plotted by matplotlib shown below</p>
  
  <ol>
  <li>How do I create minor ticks for a polar plot on the r axis?</li>
  <li>How do I move the r labels further away from the r ticks, as seen in the graph, some of the r ticks are in contact with the axis.</li>
  </ol>
  
  <p><a href="https://i.stack.imgur.com/iuWIw.png" rel="noreferrer"><img src="https://i.stack.imgur.com/iuWIw.png" alt="enter image description here"></a></p>