Update README.md

Author: GP3-RS

README.md

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-Chronos is a comprehensive developer tool that monitors the health and web traffic of servers, microservices, and containers. Use Chronos to see real-time data monitoring and receive automated notifications over Slack or email.
+Chronos is a comprehensive developer tool that monitors the health and web traffic of servers, microservices, containers, and clusters. Use Chronos to see real-time data monitoring and receive automated notifications over Slack or email.
 
 ## Table of Contents
 - [Features](#features)