Update exported configurations documentation in Readme

Author: Yannick Croissant

README.md

@@ -151,9 +151,6 @@ To enable this configuration use the `extends` property in your `.eslintrc` conf
 
 ```js
 {
-  "plugins": [
-    "react"
-  ],
   "extends": ["eslint:recommended", "plugin:react/recommended"]
 }
 ```
@@ -177,8 +174,6 @@ The rules enabled in this configuration are:
 * [react/react-in-jsx-scope](docs/rules/react-in-jsx-scope.md)
 * [react/require-render-return](docs/rules/require-render-return.md)
 
-**Note**: This configuration will also enable JSX in [parser options](http://eslint.org/docs/user-guide/configuring#specifying-parser-options).
-
 ## All
 
 This plugin also exports an `all` configuration that includes every available rule.
@@ -193,6 +188,8 @@ This pairs well with the `eslint:all` rule.
 }
 ```
 
+**Note**: These configurations will import `eslint-plugin-react` and enable JSX in [parser options](http://eslint.org/docs/user-guide/configuring#specifying-parser-options).
+
 # License
 
 ESLint-plugin-React is licensed under the [MIT License](http://www.opensource.org/licenses/mit-license.php).