Add more detail to README #2
Description
Add more detail to README, such as:
- When using class in a web app, if $_SESSION['user'] is set (i.e. through some kind of authentication mechanism), that will be used as the user who published the session.
- Permissions required on the SMS.
- If the Check Point session times out or becomes invalid when a request is made, it will attempt to login again to create a new session automatically.