Add Screenshot addon, Update stories

.storybook/addons.js

@@ -2,3 +2,4 @@
 // import "@storybook/addon-knobs/register";
 import "@storybook/addon-viewport/register";
 import "@storybook/addon-options/register";
+import "storybook-chrome-screenshot/register";

.storybook/config.js

@@ -1,6 +1,10 @@
-import { configure } from "@storybook/react";
+import { configure, addDecorator } from "@storybook/react";
 import { setDefaults } from "@storybook/addon-info";
 import { setOptions } from "@storybook/addon-options";
+import {
+  initScreenshot,
+  setScreenshotOptions
+} from "storybook-chrome-screenshot";
 
 import "bootstrap-italia/dist/css/bootstrap-italia.css";
 import "bootstrap-italia/dist/css/italia-icon-font.css";
@@ -75,6 +79,8 @@ setOptions({
   // enableShortcuts: false // true by default
 });
 
+addDecorator(initScreenshot());
+
 const req = require.context("../src/components", true, /\.stories\.js$/);
 
 function loadStories() {

README.md

@@ -7,11 +7,11 @@ npm run storybook
 # Build
 
 ```shell
-npm run build-storybook
+npm run storybook-build
 ```
 
 # Deploy (GitHub Pages)
 
 ```shell
-npm run deploy-storybook
+npm run storybook-deploy
 ```