title: md-datepicker (Angular Material) should display only Month and Year in PopUP
body: <p>How I can display only month and year using <a href="https://material.angularjs.org/latest/api/directive/mdDatepicker" rel="nofollow noreferrer"><code>md-datepicker</code></a> directive?</p>
  
  <p>Currently, There is no information is available in Angular Material Documentation.</p>
  
  <p>Can anyone help?</p>