wip readme

Author: rennokki

README.md

@@ -33,8 +33,34 @@ $ php artisan vendor:publish --provider="RenokiCo\LaravelK8s\LaravelK8sServicePr
 
 ## 🙌 Usage
 
+The cluster configuration can be found in the `config/k8s.php` file. You can get started directly with the `/.kube/config` file you already have.
+
+```php
+use RenokiCo\LaravelK8s\LaravelK8sFacade;
+
+foreach (LaravelK8sFacade::getAllConfigMaps() as $cm) {
+    // $cm->getName();
+}
+```
+
+For further documentation, check [renoki-co/php-k8s](https://github.com/renoki-co/php-k8s).
+
+## Multiple connections
+
+The package supports multiple connections configurations. If you wish to select a specific one (not the default one), call `connection` before getting the cluster.
+
+```php
+use RenokiCo\LaravelK8s\LaravelK8sFacade;
+
+$cluster = LaravelK8sFacade::connection('http')->getCluster();
+```
+
+## Getting the cluster instance
+
+You can also call `getCluster()` to get the instance of `\RenokiCo\PhpK8s\KubernetesCluster`:
+
 ```php
-$ //
+$cluster = LaravelK8sFacade::getCluster();
 ```
 
 ## 🐛 Testing