add example checkout to readme

README.md

@@ -1,6 +1,58 @@
-This package is currently for internal use, do not expect support.
-
-
-```
-composer require useshimmer/laravel-tebex-checkout
-```
+This package is currently for internal use, do not expect support.
+
+
+```
+composer require useshimmer/laravel-tebex-checkout
+```
+
+
+### Create a checkout with sdk:
+
+```PHP
+    $connector = new TebexCheckout('foo', 'bar');
+
+    $request = new CreateCheckoutRequest(
+        basket: [
+            'return_url' => 'http://foo.com',
+            'complete_url' => 'http://bar.com',
+            'custom' => [
+                'baz' => 'buzz',
+            ],
+        ],
+        items: [
+            [
+                'package' => [
+                    'name' => 'foobar',
+                    'price' => 12.34,
+                ],
+            ],
+        ]
+    );
+
+    $response = $connector->send($request);
+```
+
+### Create a checkout with resource api:
+
+```PHP
+    $connector = new TebexCheckout('foo', 'bar');
+
+    $response = $connector->checkout()->create(
+        basket: [
+            'return_url' => 'http://foo.com',
+            'complete_url' => 'http://bar.com',
+            'custom' => [
+                'baz' => 'buzz',
+            ],
+        ],
+        items: [
+            [
+                'package' => [
+                    'name' => 'foobar',
+                    'price' => 12.34,
+                ],
+            ],
+        ]
+    );
+
+```