[README] Update readme to be more modern

README.md

@@ -1,11 +1,11 @@
 # hapi-async-handler [![Build Status](https://travis-ci.org/ide/hapi-async-handler.svg?branch=master)](https://travis-ci.org/ide/hapi-async-handler)
-Adds support for ES7 async functions to [hapi](http://hapijs.com/) route handlers
+Adds support for ES2017 async functions to [hapi](http://hapijs.com/) route handlers
 
 [![npm package](https://nodei.co/npm/hapi-async-handler.png?downloads=true&downloadRank=true&stars=true)](https://nodei.co/npm/hapi-async-handler/)
 
 # ES7 Async Functions
 
-ES7 introduces [async functions](https://github.com/lukehoban/ecmascript-asyncawait), which are functions that support the `await` keyword and return promises. This hapi plugin adds a handler called `async` that allows you to write your route handlers using async functions. You can also use hapi-async-handler with [io.js](https://iojs.org/), generator functions (and the `yield` keyword), and [co](https://github.com/tj/co) today. There are examples of both styles of use shown below.
+ES7 introduces [async functions](https://github.com/lukehoban/ecmascript-asyncawait), which are functions that support the `await` keyword and return promises. This hapi plugin adds a handler called `async` that allows you to write your route handlers using async functions. You can also use hapi-async-handler with [Node.js](https://nodejs.org/), generator functions (and the `yield` keyword), and [co](https://github.com/tj/co) today. There are examples of both styles of use shown below.
 
 # Using hapi-async-handler
 
@@ -14,8 +14,8 @@ ES7 introduces [async functions](https://github.com/lukehoban/ecmascript-asyncaw
 ```javascript
 var server = new Hapi.Server();
 server.register([
-  require('hapi-async-handler')
-], function(error) { ... });
+  require('hapi-async-handler'),
+], (error) => { ... });
 ```
 
 ## Defining a Route Handler
@@ -27,22 +27,22 @@ server.route({
   method: 'GET',
   path: '/',
   handler: {
-    // The "async" handler accepts an async function
-    async: async function(request, reply) {
+    // Define a property called "async" that's an async function
+    async async(request, reply) {
       // instapromise gives you promises from methods with Node-style callbacks
       require('instapromise');
-      var fileContents = await fs.promise.readFile('example.txt', 'utf8');
+      let fileContents = await fs.promise.readFile('example.txt', 'utf8');
       reply(fileContents);
-    }
-  }
+    },
+  },
 });
 ```
 
-For the `async` keyword to work, you will need to transform your source code with [Babel](https://babeljs.io/docs/usage/experimental/), [regenerator](https://facebook.github.io/regenerator/), or a similar compiler.
+For the `async` keyword to work, you will need to transform your source code with [Babel](https://babeljs.io/docs/plugins/preset-stage-3/) or a similar compiler.
 
 ### Using co
 
-You can also use co and generator functions without any source-code transformations if you are using io.js.
+You can also use co and generator functions without any source-code transformations:
 
 ```javascript
 server.route({
@@ -54,7 +54,7 @@ server.route({
       require('instapromise');
       var fileContents = yield fs.promise.readFile('example.txt', 'utf8');
       reply(fileContents);
-    })
-  }
+    }),
+  },
 });
 ```