Improve the Getting Started guide.

Author: Trott

locale/en/docs/guides/getting-started-guide.md

@@ -5,8 +5,8 @@ layout: docs.hbs
 
 # How do I start with Node.js after I installed it?
 
-Once you have installed Node, let's try building our first web server.
-Create a file named "app.js", and paste the following code:
+Once we have installed Node.js, let's build our first web server.
+Create a file named `app.js` containing the following contents:
 
 ```javascript
 const http = require('http');
@@ -25,4 +25,8 @@ server.listen(port, hostname, () => {
 });
 ```
 
-After that, run your web server using `node app.js`, visit `http://localhost:3000`, and you will see a message 'Hello World'
+Now, run your web server using `node app.js`. Visit `http://localhost:3000` and
+you will see a message saying "Hello World".
+
+Refer to the [Introduction to Node.js](https://nodejs.dev/) for a more
+comprehensive guide to getting started with Node.js.