0xjs README/website docs update

packages/website/md/docs/0xjs/0.0.1/installation.md

@@ -0,0 +1,31 @@
+0x.js ships as both a [UMD](https://github.com/umdjs/umd) module and a [CommonJS](https://en.wikipedia.org/wiki/CommonJS) package.
+
+#### CommonJS _(recommended)_:
+
+**Install**
+
+```bash
+npm install 0x.js --save
+```
+
+**Import**
+
+```javascript
+import { ZeroEx } from '0x.js';
+```
+
+#### UMD:
+
+**Install**
+
+Download the UMD module from our [releases page](https://github.com/0xProject/0x-monorepo/releases) and add it to your project.
+
+**Import**
+
+```html
+<script type="text/javascript" src="0x.js"></script>
+```
+
+### Wiki
+
+Check out our [wiki](https://0xproject.com/wiki) for articles on how to get 0x.js setup with TestRPC, Infura and more!