Update documentation.

Author: zachleigh

README.md

@@ -8,6 +8,7 @@
 ### Contents
   - [Install](#install)
   - [Usage](#usage)
+  - [Configuration](#configuration)
   - [Testing](#testing)
   - [Contributing](#contributing)
 
@@ -75,6 +76,15 @@ php artisan vueg:mixin MyMixin --path=assets/js/custom/folder
 ``` 
 Will create a file called MyMixin.vue at resources/assets/js/custom/folder/MyMixin.vue.
 
+### Configuration
+Set default paths for components and mixins. All paths are relative to Laravel's resources directory.
+```php
+'paths' => [
+    'components' => 'path/to/components',
+    'mixins'     => 'path/to/mixins',
+]
+```
+
 ### Testing
 ```
 composer test

src/config.php

@@ -6,7 +6,8 @@
     | Paths
     |--------------------------------------------------------------------------
     |
-    | Register default paths for file types.
+    | Register default paths for file types. All paths are relative to Laravel's
+    | resources directory.
     */
     'paths' => [
         'components' => 'assets/js/components',