Update readme

README.md

@@ -5,11 +5,21 @@ An plugin for [osTicket](https://osticket.com) which posts notifications to a [R
 Install
 --------
 Clone this repo or download the zip file and place the contents into your `include/plugins` folder.
+Download Html2Text.php from https://github.com/soundasleep/html2text and copy it in plugin root folder.
+
+Features
+--------
+* Define Emoji
+* Escape Text (Using Html2Text)
+* Remove double newlines
+* Define how long text to send
+* Define colors
 
 Info
 ------
-This plugin uses CURL and tested on osTicket-v1.9.12 (19292ad).
+This plugin uses CURL and tested on osTicket-v1.8 (19292ad).
 
 Forked from
 ------
-This repo is forked from https://github.com/thammanna/osticket-slack and modified to work with Rocket.Chat
+This repo is forked from https://github.com/thammanna/osticket-slack and modified to work with Rocket.Chat.
+Some additional features added from: https://github.com/Runalyze/osticket-slack.