update readme

README.md

@@ -1,16 +1,52 @@
 react-jazzicon
 ==============
+[![NPM version][npm-image]][npm-url] [![dependencies Status][david-dep-image]][david-dep-url] [![devDependencies Status][david-devDep-image]][david-devDep-url]
 
-# demo page
+This is a react component for [Dan Finlay's](https://github.com/danfinlay)
+[jazzicon](https://github.com/danfinlay/jazzicon).
+
+# usage
+
+```js
+import Jazzicon from 'react-jazzicon'
+
+export default class App extends React.Component {
+
+  …
+
+  render() {
+    return (
+      <Jazzicon diameter={100} seed={Math.random(100).toString()} />
+    )
+  }
+}
+```
+
+# setup
+
+```sh
+$ https://github.com/marcusmolchany/react-jazzicon
+$ cd react-jazzicon
+$ yarn # or npm i
+```
+
+## demo page
 
 the demo page is on the `gh-pages` branch in the `demo` folder.
 
 ```sh
 # first install dependencies in the top level package
-$ npm i # or yarn
+$ yarn # or npm i
 
 # then checkout the gh-pages branch and install dependencies in the "demo" folder
 $ git checkout gh-pages
-$ cd demo && npm i # or yarn
-$ npm run start # or yarn start
+$ cd demo && yarn # or npm i
+$ yarn start # or npm run start
 ```
+
+[david-dep-image]: https://david-dm.org/marcusmolchany/react-jazzicon/status.svg
+[david-dep-url]: https://david-dm.org/marcusmolchany/react-jazzicon
+[david-devDep-image]: https://david-dm.org/marcusmolchany/react-jazzicon/dev-status.svg
+[david-devDep-url]: https://david-dm.org/marcusmolchany/react-jazzicon?type=dev
+[npm-image]: https://badge.fury.io/js/react-jazzicon.svg
+[npm-url]: https://npmjs.org/package/react-jazzicon