README: separator

Author: sqlxpert

README.md

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 [Security](#security)
 
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 ![The main components of Backup Events are: an AWS Backup vault in every account and region; 3 event rules in resource accounts; backup copy and retention reduction AWS Lambda functions in resource accounts; and a copy function in the backup account]( backup-events-aws-components.png "Components of Backup Events")
 
 ## Quick Start