title: Display Based on the parent Term
body: <p>I need to display widget areas based on the parent term..</p>
  
  <p>Eg:-</p>
  
  <p>Cars
   a. Ford
   b. Porsche
   c. Bmw</p>
  
  <p>Bikes
   a. Honda
   b. Harley
   c. Yamaha</p>
  
  <p>my custom taxonomy is custom_categories</p>
  
  <p>If im on the taxonomy page like something.com?custom_categories=ford or custom_categories=bmw or all child categories of Cars
  "then display the widget area A and if"
  If im on the taxonomy page something.com?custom_categories=honda  or all child categories of Bikes 
  "then display the widget area B "</p>
  
  <p>Eg :-  If parent_tax is cars then do widget 1 else if parent_tax is bikes then do widget2</p>