Adds basic example and doc in the readme

Author: chollier

README.md

@@ -3,11 +3,42 @@ react-bootstrap-datetimepicker
 
 This project is a port of https://github.com/Eonasdan/bootstrap-datetimepicker for React.js
 
-Contributions
+Usage
 ===============================
-There's still plenty of features missing compared to the original date time picker, hence contributions would be highly appreciated.
 
-Aknowledgments
+Installation :
+```
+npm install react-bootstrap-datetimepicker
+```
+
+Then
+```javascript
+require('react-bootstrap-datetimepicker');
+
+...
+
+render: function() {
+  return <DateTimeField />;
+}
+```
+See [Examples](examples/README.md) for more details.
+
+API
 ===============================
 
-I took https://github.com/stevoland/react-bootstrap as a reference to get the build actually building.
+DateTimeField
+========
+
+| Name         | Type    | Default | Description |
+| ------------ | ------- | ------- | ----------- |
+| **dateTime** | string  | "1234567" | Represents the inital dateTime, this string is then parsed by moment.js |
+| **format**   | string  | "X"     | Defines the format moment.js should use to parse and output the date to onChange |
+| **inputFormat** | string | "MM/DD/YY H:mm A" | Defines the way the date is represented in the HTML input |
+| **onChange** | function | x => console.log(x) | Callback trigger when the date changes |
+| **showToday** | boolean | true | Highlights today's date |
+| **daysOfWeekDisabled** | array of integer | [] | Disables clicking on some days. Goes from 0 (Sunday) to 6 (Saturday). |
+
+
+Contributions
+===============================
+There is still plenty of features missing compared to the original date time picker, hence contributions would be highly appreciated.