fix(package,README): 1.Added documentation reference 2. Updated dependencies

Author: crisboarna

README.md

@@ -19,6 +19,7 @@ npm install fb-messenger-bot-api
 ```
 
 ## Table of Contents
+* [Documentation](#documentation)
 * [Features](#features)
 * [Setup](#setup)
 * [Sending Messages](#sending-messages)
@@ -46,6 +47,10 @@ npm install fb-messenger-bot-api
 * [Creating Facebook App](#creating-facebook-app)
 * [Contributing](#contributing)
 
+## Documentation
+Documentation can be found [here](https://crisboarna.github.io/fb-messenger-bot-api/)
+
+
 ## Features
 * Most of Send API support (
   * `Text`