update README

Author: Nicuz

README.md

@@ -4,102 +4,25 @@ A dart package to interact with the WooCommerce API. It uses OAuth1.0a behind th
 
 ![Example code and preview](Screenshot.png)
 
-## Complete Usage Example
-```dart
-import 'dart:async';
-
-import 'package:flutter/material.dart';
-import 'package:woocommerce_api/woocommerce_api.dart';
-
-void main() => runApp(new MyApp());
-
-class MyApp extends StatelessWidget {
-  @override
-  Widget build(BuildContext context) {
-    return new MaterialApp(
-      title: 'Flutter Demo',
-      theme: new ThemeData(
-        primarySwatch: Colors.blue,
-      ),
-      home: new MyHomePage(title: 'WooCommerce API Demo'),
-    );
-  }
-}
-
-class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
-
-  final String title;
-
-  @override
-  _MyHomePageState createState() => new _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-
-  List<Widget> products = [];
+## Examples
 
-  Future getProducts() async {
-
-    /// Initialize the API
-    WooCommerceAPI wc_api = new WooCommerceAPI(
-        url: "https://www.yourwebsite.com",
-        consumerKey: "ck_your_consumer_key",
-        consumerSecret: "cs_your_consumer_secret"
-    );
-    
-    /// Get data using the endpoint
-    var p = await wc_api.getAsync("products");
-    return p;
-  }
-
-  @override
-  void initState() {
-    super.initState();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return new Scaffold(
-      appBar: new AppBar(
-        title: new Text(widget.title),
-      ),
-      body: FutureBuilder(
-        future: getProducts(),
-        builder: (_, s){
-
-          if(s.data == null){
-            return Container(
-              child: Center(
-                child: Text("Loading..."),
-              ),
-            );
-          }
-
-          return ListView.builder(
-            itemCount: s.data.length,
-            itemBuilder: (_, index){
-            
-            /// create a list of products
-              return ListTile(
-                leading: CircleAvatar(
-                  child: Image.network(s.data[index]["images"][0]["src"]),
-                ),
-                title: Text(s.data[index]["name"]),
-                subtitle: Text("Buy now for \$ " + s.data[index]["price"]),
-              );
-
-            }
-          );
-        },
-      ),
-    );
-  }
+### GET request (Fetch products)
+```dart
+Future getProducts() async {
+  // Initialize the API
+  WooCommerceAPI wooCommerceAPI = WooCommerceAPI(
+      url: "https://www.yourwebsite.com",
+      consumerKey: "ck_your_consumer_key",
+      consumerSecret: "cs_your_consumer_secret");
+
+  // Get data using the "products" endpoint
+  var products = await wooCommerceAPI.getAsync("products");
+  return products;
 }
-
 ```
+You can find a full example [here](example/fetch_products.dart)
 
-### Example of making a POST (Create a customer)
+### POST request (Create a customer)
 ```dart
 Future createCustomer() async {
   try {