Fixed up README

README.md

@@ -1,2 +1,34 @@
 # ruby-holidayapi
 Official Ruby library for Holiday API
+
+## Installation
+
+```shell
+gem install ruby-holidayapi
+```
+
+## Usage
+
+```ruby
+require 'ruby-holidayapi'
+
+var HolidayAPI = require('node-holidayapi');
+var hapi = new HolidayAPI('_YOUR_API_KEY').v1;
+
+hapi = Holiday::V1('_YOUR_API_KEY_');
+
+parameters = {
+  // Required
+  'country' => 'US',
+  'year'    => 2016,
+  // Optional
+  // 'month'    => 7,
+  // 'day'      => 4,
+  // 'previous' => true,
+  // 'upcoming' => true,
+  // 'public'   => true,
+  // 'pretty'   => true,
+}
+
+response = hapi.holiday(parameters)
+```