Document the changes in automation feature in the help center

[pranavrajs]

• Write down the new events, conditions that are supported
• Give a real-world example for these conditions.

For eg: If a new conversation is created from a particular company say google.com, assign those conversations to the priority-support team.

Event -> conversation.created
Conditions -> Status = Open && Contact.email includes google.com
Actions -> Assign to team 'priority-support'