[refs #1] Add new name feature to README.md

README.md

@@ -18,14 +18,16 @@ This package assumes you have a text-search setup for your Eloquent models. See
 For this example let's assume a user belongs to a department and a department has many users.
 To make the relationship searchable via a filter, add this to the `filters()` function of your Nova user resource:
 
+By default the filter will display the name of the `fieldAttribute` you passed on instantiation. You can customize the name by passing it as an argument to the filter's construct function, for example `my-new-name`.
+
 ```php
 // app/Nova/User.php
 public function filters(Request $request)
 {
     return [
-	(new NovaSearchableBelongsToFilter)
+	(new NovaSearchableBelongsToFilter('my-new-name'))
 	    ->fieldAttribute('department')
 	    ->filterBy('department_id')
     ];
 }
-```
+```