Added 'a11y' and 'source' addons to storybook as well as more stories

stories/FieldArray.stories.js

@@ -0,0 +1,44 @@
+import React from 'react';
+import {useActionState} from './helper';
+import FieldArray from '../src/components/FieldArray';
+import {Wrapper} from './ui';
+import {withA11y} from '@storybook/addon-a11y';
+
+export default {
+  title: 'FieldArray',
+  component: FieldArray,
+  decorators: [withA11y],
+};
+
+
+export const NumberType = () => {
+  const [value, setValue] = useActionState("onChange", [1,2,3]);
+
+  return (
+    <Wrapper>
+      <FieldArray
+        type="number"
+        value={value}
+        length={3}
+        onChange={setValue}
+      />
+    </Wrapper>
+  );
+};
+
+export const StringType = () => {
+  const [value, setValue] = useActionState("onChange", ["a", "b", "c"]);
+
+  return (
+    <Wrapper>
+      <FieldArray
+        type="string"
+        value={value}
+        length={3}
+        onChange={setValue}
+      />
+    </Wrapper>
+  );
+};
+
+