update readme

polidog · polidog · commit 7ce1bfcbef91 · 2018-03-17T15:03:30.000+09:00
diff --git a/README.md b/README.md
@@ -18,15 +18,8 @@ php-chatwork-api
 
 ## Install
 
-composer.jsonに以下の記述を加えてください。
-
 ```
-{
-  "require": {
-    "polidog/php-chatwork-api": "0.2.*@dev",
-    "cakephp/utility": "3.0.0-beta3"
-  }
-}
+$ composer require polidog/php-chatwork-api
 ```
 
 
