Add README file

Author: rmccue

README.md

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+# OAuth 1.0a Server for WordPress
+This project is an OAuth 1.0a-compatible authentication method for WordPress.
+This is a separate-but-related project to [WP API][], designed to provide
+authentication suitable for the API.
+
+## Documentation
+
+Read the [plugin's documentation][docs].
+
+[docs]: https://github.com/WP-API/OAuth1/tree/master/docs
+
+
+## Quick Setup
+
+Want to test out the OAuth API and work on it? Here's how you can set up your own
+testing environment in a few easy steps:
+
+1. Install [Vagrant](http://vagrantup.com/) and [VirtualBox](https://www.virtualbox.org/).
+2. Clone [Chassis](https://github.com/sennza/Chassis):
+
+   ```bash
+   git clone --recursive [email protected]:sennza/Chassis.git api-tester
+   vagrant plugin install vagrant-hostsupdater
+   ```
+
+3. Grab a copy of WP API and OAuth API:
+
+   ```bash
+   cd api-tester
+   mkdir -p content/plugins content/themes
+   cp -r wp/wp-content/themes/* content/themes
+   git clone [email protected]:WP-API/WP-API.git content/plugins/json-rest-api
+   git clone [email protected]:WP-API/OAuth1.git content/plugins/oauth-server
+   ```
+
+4. Start the virtual machine:
+
+   ```bash
+   vagrant up
+   ```
+
+5. Browse to http://vagrant.local/wp/wp-admin/ and activate the WP API and OAuth
+   API plugins
+
+   ```
+   Username: admin
+   Password: password
+   ```
+
+6. Refer to the [documentation][docs] on how to connect an OAuth client.