Merge pull request #18 from christianalfoni/master

Add example of success and error handlers

README.md

@@ -112,6 +112,19 @@ fetch('/avatars', {
 })
 ```
 
+### Success and error handlers
+
+```javascript
+fetch('/users')
+  .then(function (response) {
+    if (response.status >= 200 && response.status < 300) {
+      return response.json().then(mySuccessHandler);
+    } else {
+      return response.json().then(myErrorHandler);
+    }
+  }).catch(myErrorHandler);
+```
+
 ## Browser Support
 
 ![Chrome](https://raw.github.com/alrra/browser-logos/master/chrome/chrome_48x48.png) | ![Firefox](https://raw.github.com/alrra/browser-logos/master/firefox/firefox_48x48.png) | ![IE](https://raw.github.com/alrra/browser-logos/master/internet-explorer/internet-explorer_48x48.png) | ![Opera](https://raw.github.com/alrra/browser-logos/master/opera/opera_48x48.png) | ![Safari](https://raw.github.com/alrra/browser-logos/master/safari/safari_48x48.png)