add namespaces to traits on console commands page

Just had to track down the namespace before using these traits, figured it would be easier for those who come after if they are already in the docs.

source/docs/v3/tenant-aware-commands.blade.md

@@ -11,6 +11,8 @@ Even though [`tenants:run`]({{ $page->link('console-commands#run') }}) lets you
 
 To make a command tenant-aware, utilize the `TenantAwareCommand` trait:
 ```php
+use Stancl\Tenancy\Concerns\TenantAwareCommand;
+
 class MyCommand extends Command
 {
     use TenantAwareCommand;
@@ -20,8 +22,8 @@ class MyCommand extends Command
 However, this trait requires you to implement a `getTenants()` method that returns an array of `Tenant` instances.
 
 If you don't want to implement the options/arguments yourself, you may use one of these two traits:
-- `HasATenantsOption` - accepts multiple tenant IDs, optional -- by default the command is executed for all tenants
-- `HasATenantArgument` - accepts a single tenant ID, required argument
+- `Stancl\Tenancy\Concerns\HasATenantsOption` - accepts multiple tenant IDs, optional -- by default the command is executed for all tenants
+- `Stancl\Tenancy\Concerns\HasATenantArgument` - accepts a single tenant ID, required argument
 
 These traits implement the `getTenants()` method needed by `TenantAwareCommand`.
 
@@ -30,6 +32,10 @@ These traits implement the `getTenants()` method needed by `TenantAwareCommand`.
 So if you use these traits in combination with `TenantAwareCommand`, you won't have to change a thing in your command:
 
 ```php
+
+use Stancl\Tenancy\Concerns\TenantAwareCommand;
+use Stancl\Tenancy\Concerns\HasATenantsOption;
+
 class FooCommand extends Command
 {
     use TenantAwareCommand, HasATenantsOption;
@@ -40,6 +46,9 @@ class FooCommand extends Command
     }
 }
 
+use Stancl\Tenancy\Concerns\TenantAwareCommand;
+use Stancl\Tenancy\Concerns\HasATenantArgument;
+
 class BarCommand extends Command
 {
     use TenantAwareCommand, HasATenantArgument;