Storybook (#122)

* adding storybook

* update webpack config

* Update package.json

* udpating build script

.storybook/webpack.config.js

@@ -0,0 +1,13 @@
+const path = require('path');
+
+module.exports = {
+  module: {
+    rules: [
+      {
+        test: /\.scss$/,
+        use: ['style-loader', 'css-loader', 'sass-loader'],
+        include: path.resolve(__dirname, '../'),
+      },
+    ],
+  },
+}