Updated README.md

README.md

@@ -1,2 +1,40 @@
 # fastify-jwt
-JWT utils for Fastify
+
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](http://standardjs.com/)  [![Build Status](https://travis-ci.org/fastify/fastify-jwt.svg?branch=master)](https://travis-ci.org/fastify/fastify-jwt)
+
+JWT utils for Fastify, internally uses [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken).
+
+## Install
+```
+npm i fastify-jwt --save
+```
+
+## Usage
+Register it as plugin and then access it via `jwt`.  
+The api is the same of [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken), refer to their documentation to find how use the utilities.
+
+```js
+const fastify = require('fastify')
+fastify.register(require('fastify-jwt'), { secret: 'supersecret' }, err => {
+  if (err) throw err
+})
+
+fastify.post('/signup', (req, reply) => {
+  // some code
+  const token = fastify.jwt.sign({ payload })
+  reply.send({ token })
+})
+
+fastify.listen(3000, err => {
+  if (err) throw err
+})
+```
+
+## Acknowledgements
+
+This project is kindly sponsored by:
+- [LetzDoIt](http://www.letzdoitapp.com/)
+
+## License
+
+Licensed under [MIT](./LICENSE).