Update readme

README.md

@@ -2,38 +2,27 @@
 
 Binding to the *cordova* object available
 [here](https://github.com/apache/cordova-js) in the src directory.
-It allows you to create your cordova plugin entirely in OCaml by using the exec
-function. You also have access to the device version, the platform id, etc.
 
-## Introduction
-
-### What's cordova ?
-
-Cordova allows you to develop hybrid mobile application using web technologies such as HTML, CSS and Javascript. For more informations, see [the official website](https://cordova.apache.org/).
-Through cordova plugins, you can access to the native components. To learn how to make cordova plugins, see [the official tutorial](https://cordova.apache.org/docs/en/latest/guide/hybrid/plugins/index.html).
-You can find the official cordova plugin list [here](https://cordova.apache.org/plugins/).
-
-### Binding in OCaml to existing cordova plugins
-
-There's a list of bindings to existing cordova plugins (written in Javascript)
-using js_of_ocaml:
-[See this
-repository](https://github.com/dannywillems/ocaml-cordova-plugin-list).
-
-## Develop your cordova plugin entirely in OCaml !
-
-Instead of using js_of_ocaml to bind to existing cordova plugins, it's
-interesting to be able to develop his own cordova plugin using only **ocaml**.
-
-This repository aims to provide a simple way to do it by providing a binding to
-the *cordova* object. You develop entirely in OCaml and this module will create,
-using js_of_ocaml, the Javascript interface for your cordova plugin.
+This binding provides you some functions to create easily listener for Cordova
+like the deviceready event.
 
 ## Available bindings
 
-* cordova.platformId
-* cordova.platformVersion
-* cordova.version
+* Cordova.platform_id: get the platform id.
+* Cordova.platform_version: get the platform version.
+* Cordova.version: get the Cordova version.
+* Cordova.Event: module for Cordva events.
+  * add_event_listener: add a listener on *volume buttons*, *deviceready*,
+    *backbutton*, etc. Use a sum type to have type checking.
+  * device_ready: alias to ```add_event_listener Device_ready```. **You need to
+    use it for all your Cordova projects using plugins because they are only
+    available when this event is handled**.
+
+## How to install?
+
+```Shell
+opam install cordova
+```
 
 ## Example