Add a proper README

Author: Divoolej

README.md

@@ -1,2 +1,47 @@
+[![NPM](https://img.shields.io/npm/v/react-select-nes-css-theme.svg)](https://www.npmjs.com/package/react-select-nes-css-theme)
+
 # react-select-nes-css-theme
-A React-Select theme created to match NES.css styles 
+#### A lightweight (zero-dependency) [React-Select](https://github.com/JedWatson/react-select) theme created to match [NES.css](https://github.com/nostalgic-css/NES.css) styles.
+
+![](example.gif)
+
+#### Installation
+Use either
+```bash
+yarn add react-select-nes-css-theme
+```
+or
+```bash
+npm install react-select-nes-css-theme
+```
+
+#### Usage
+Simply import the theme object and pass it to the `styles` prop of the `Select` component.
+```javascript
+import React, { useState } from 'react';
+import Select from 'react-select';
+
+import nesTheme from 'react-select-nes-css-theme'; // HERE: Import the theme object
+
+const StyledSelectComponent = () => {
+  const [value, setValue] = useState();
+
+  return (
+    <Select
+      value={value}
+      styles={nesTheme} // HERE: Pass the theme object as a prop
+      onChange={setValue}
+      options={[
+        { value: 0, label: To be' },
+        { value: 1, label: 'Not to be' },
+      ]}
+    />
+  );
+};
+
+export default StyledSelectComponent;
+```
+
+## License
+
+MIT Licensed. Copyright (c) Wojciech Olejnik 2018.