Add README

This patch adds a readme introducing js-openstack-lib and it's purpose.
A simple example in ES6 was added.

Change-Id: I8c6cedd13b6bcd965b7c88c73c8499f53882c331

README.rst

@@ -0,0 +1,58 @@
+JS-OpenStack-lib
+================
+
+JS-OpenStack-lib is a Javascript library for interacting with OpenStack clouds. The project aims to provide a constistent and complete set of interactions with OpenStack's many services, along with documentations, examples, and tools.
+This library is compatible with both browser and server side Javascript.
+
+Example
+-------
+
+The following example simply connects to an OpenStack cloud and list flavors in the Compute service:
+
+::
+
+   import OpenStack from 'js-openstack-lib';
+
+   // Initialize cloud
+   // cloudConfig is a JSON object corresponding to clouds.yaml
+   // (It is your responsibility to load and parse it)
+   const openStack = new OpenStack({
+     region_name: 'Region1',
+     auth: {
+       username: 'user',
+       password: 'pass',
+       project_name: 'js-openstack-lib',
+       auth_url: 'http://192.168.99.99/'
+     }
+   });
+   // List all flavors
+   openStack.networkList()
+     .then((networks) => {
+       console.log(networks);
+     });
+
+Documentation
+-------------
+
+Coming soon
+
+Contributing
+------------
+
+If you're interested in contributing, the following will help you get started:
+
+:Bug Tracker: https://storyboard.openstack.org/#!/project/844
+:Code Hosting: https://git.openstack.org/cgit/openstack/js-openstack-lib
+:Code Review:
+    https://review.openstack.org/#/q/status:open+project:openstack/js-openstack-lib,n,z
+
+    Please read `Developer's Guide <http://docs.openstack.org/infra/manual/developers.html>`_ before sending your first patch for review
+
+
+
+License
+-------
+
+Apache 2.0
+
+