title: How to create submenu in the vuetify main drawer/navigation
body: <p>I'm new to vuetify js. I've started to use it and need your help to accomplish the submenu in the right side menu. Please see attached.
  I'm reffering to the one in the left with arrow down to select its contents. From here: "<a href="https://vuetifyjs.com/vuetify/quick-start" rel="noreferrer">https://vuetifyjs.com/vuetify/quick-start</a>"</p>
  
  <p>ex. Vuetify -> (click arrow down) - > Contributing</p>
  
  <p>Please let me know how to do it. </p>
  
  <p><a href="https://i.stack.imgur.com/HNx15.png" rel="noreferrer"><img src="https://i.stack.imgur.com/HNx15.png" alt="enter image description here"></a></p>
  
  <p>Thanks</p>