chore(*): added description for input property autoGenerated #6845

Author: igdmdimitrov

projects/igniteui-angular/src/lib/tabs/tab-item.component.ts

@@ -73,7 +73,10 @@ export class IgxTabItemComponent extends IgxTabItemBase implements AfterViewInit
         this._label = newValue;
     }
 
-    /**@hidden*/
+    /**
+     * @hidden @internal
+     * Set to true when the tab item is automatically generated from the IgxTabsComponent when tab groups are defined.
+     */
     @Input()
     public autoGenerated: boolean;