Minor fixes

Author: Nyholm

README.md

@@ -15,7 +15,7 @@ This repository contains the open source PHP SDK that allows you to access the F
 The Facebook PHP SDK can be installed with [Composer](https://getcomposer.org/). Run this command:
 
 ```sh
-composer require facebook/graph-sdk php-http/curl-client guzzlehttp/psr7 php-http/message
+composer require facebook/graph-sdk php-http/curl-client guzzlehttp/psr7
 ```
 
 Why the extra packages? We give you the flexibility to choose what HTTP client (e.g. cURL or Guzzle) to use and what PSR-7 implementation you prefer. Read more about this at the [HTTPlug documentation](http://php-http.readthedocs.io/en/latest/httplug/users.html).

composer.json

@@ -25,7 +25,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^6.2",
-      "php-http/guzzle6-adapter": "^1.0"
+        "php-http/guzzle6-adapter": "^1.0"
     },
     "autoload": {
         "psr-4": {