using macroable trait

readme.md

@@ -46,7 +46,19 @@ SlackApi::post('users.admin.invite', ['body' => [
     'channels' => 'UXE-!12312,UE0A-23123' //get the channels ids with SlackApi::get('channels.list')
 ]]);
 
-...
+//or create macros to common functions:
+
+SlackApi::macro('inviteMember', function($email, $username="", $channels=""){
+    return SlackApi::post('users.admin.invite', ['body' => [
+        'first_name' => $username,
+        'email' => $email,
+        '_attempts' => 1,
+        'channels' => $channels
+    ]]);
+});
+
+SlackApi::inviteMember('[email protected]', "John Doe");
+
 ```
 
 ## License

src/Vluzrmos/SlackApi/SlackApi.php

@@ -3,8 +3,10 @@
 namespace Vluzrmos\SlackApi;
 
 use GuzzleHttp\Client;
+use Illuminate\Support\Traits\Macroable;
 
-class SlackApi{
+class SlackApi {
+  use Macroable;
 
   /**
    *