docs: update @fastify/cookie (fastify#172)

README.md

@@ -5,7 +5,7 @@
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://standardjs.com/)
 
 A session plugin for [fastify](http://fastify.io/).
-Requires the [fastify-cookie](https://github.com/fastify/fastify-cookie) plugin.
+Requires the [@fastify/cookie](https://github.com/fastify/fastify-cookie) plugin.
 
 **NOTE:** This is the continuation of [fastify-session](https://github.com/SerayaEryn/fastify-session) which is unmaintained by now. All work credit till [`e201f7`](https://github.com/fastify/session/commit/e201f78fc9d7bd33c6f2e84988be7c8af4b5a8a3) commit goes to [SerayaEryn](https://github.com/SerayaEryn) and contributors.
 
@@ -20,7 +20,7 @@ npm i @fastify/session
 ```js
 const fastify = require('fastify');
 const fastifySession = require('@fastify/session');
-const fastifyCookie = require('fastify-cookie');
+const fastifyCookie = require('@fastify/cookie');
 
 const app = fastify();
 app.register(fastifyCookie);