Merge be3c6cb into 718ec19

Author: welcoMattic

composer.json

@@ -16,7 +16,8 @@
         "php-http/message": "^1.3",
         "php-http/client-common": "^1.2",
         "php-http/cache-plugin": "^1.0",
-        "php-http/logger-plugin": "^1.0"
+        "php-http/logger-plugin": "^1.0",
+        "php-http/discovery": "^1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.5 || ^5.4",