Add keywords to composer

Author: sasa-b

README.md

@@ -3,6 +3,7 @@ APNS - Apple Push Notification Service PHP Client
 
 [![PHP >= 7.0](https://img.shields.io/badge/php-%3E%3D%207.0-8892BF.svg?style=flat-square)](https://php.net/)
 ![](https://img.shields.io/packagist/v/sasa-b/apns2)
+![](https://img.shields.io/packagist/l/sasa-b/apns2)
 
 ## Requirements
 ```

composer.json

@@ -3,6 +3,16 @@
     "description": "APNS - Apple Push Notification Service PHP client",
     "type": "library",
     "license": "MIT",
+    "keywords": [
+        "apns",
+        "apns2",
+        "push-notifications",
+        "apple",
+        "ios",
+        "client",
+        "http",
+        "http2"
+    ],
     "authors": [
         {
             "name": "Sasa Blagojevic",