docs: move configuration details to separate file

Signed-off-by: Kekeocha Justin Chetachukwu <[email protected]>

docs/installation.md

@@ -16,43 +16,4 @@ You can publish the config file with this artisan command:
 php artisan vendor:publish --tag=laravel-wallet-config
 ```
 
-After installing the package, you can proceed to [use it](basic-usage).
-## Configure default wallet
-You can customize the configuration file to suit certain needs. Example: 
-
-Customize `name` and `slug` of default wallet.
-```php[config/wallet.php]
-'default' => [
-            'name' => 'Ethereum',
-            'slug' => 'ETH',
-            'meta' => [],
-        ],
-```
-## Extend Wallet class
-You can extend the Wallet class by creating a new class that extends `Bavix\Wallet\Models\Wallet` and registering the new class in `config/wallet.php`.
-Example `MyWallet.php`
-
-```php[App/Models/MyWallet.php]
-use Bavix\Wallet\Models\Wallet as WalletBase;
-
-class MyWallet extends WalletBase {
-    public function helloWorld(): string { return "hello world"; }
-}
-```
-
-```php[config/wallet.php]
-    'wallet' => [
-        'table' => 'wallets',
-        'model' => MyWallet::class,
-        'creating' => [],
-        'default' => [
-            'name' => 'Default Wallet',
-            'slug' => 'default',
-            'meta' => [],
-        ],
-    ],
-```
-```php
-   echo $user->wallet->helloWorld();
-```
-
+After installing the package, you can proceed to [use it](basic-usage) or [configure](configuration) it to suit your needs.