spelling fix in readme and added configuration section to explain the config file

Author: Alex Blake

README.md

@@ -1,6 +1,6 @@
 # Eloquent Model Searcher for Laravel 5
 
-## Instalation
+## Installation
 
 Add this line to your `providers` array:
 ``` php
@@ -15,6 +15,34 @@ You will need to run `php artisan vendor:publish` to publish the config file to
 Once run, you can find it in `config/eloquenet_search.php`.
 This config file is used to controll which models are used to search/return entities of.
 
+
+## Configuration
+
+The config file can be found in the laravel config folder at `config/eloquent_search.php`,
+here you can define the classes related to your models as below.
+``` php
+return [
+	'search_models' => [
+		/* 
+			Add your searchable eloquent models here, this is an example of user model usage.
+
+			If you have your models sitting in the app root as default, something like this should find them.
+			
+				'user' => User::class,
+	    	
+	    	Otherwise if you have them elsewhere or the application cant seem to find them, try prefix them as such.
+	    
+	    		'user' => App\Models\User::class,
+
+	    */
+	   	
+	    'user' => User::class,
+
+	]
+];
+```
+
+
 ### Additional Feature:
 
 Implement the method 'isSearchable' in your models for the searcher to determine if it is allowed to search/return that model.