Add HertzBeat to Monitoring

README.md

@@ -423,7 +423,7 @@ _See also: [IT Asset Management]([Ralph](#it-asset-management))_
 * [eZ Server Monitor](http://www.ezservermonitor.com) - A lightweight and simple dashboard monitor for Linux, available in Web and Bash application.
 * [Flapjack](http://flapjack.io/) - Monitoring notification routing & event processing system.
 * [Healthchecks](https://healthchecks.io/) - Monitoring for cron jobs, background services and scheduled tasks.
-* [HertzBeat](https://github.com/dromara/hertzbeat) - An open-source real-time monitoring system with custom-monitor and agentless.
+* [HertzBeat](https://github.com/dromara/hertzbeat) - An open-source real-time monitoring system with custom-monitor and agentless. `Apache-2.0` `Java`
 * [Icinga](https://www.icinga.com/) - Nagios fork that has since lapped nagios several times. Comes with the possibility of clustered monitoring - ([Source Code](https://github.com/Icinga)) - `GPLv2`
 * [LibreNMS](http://www.librenms.org) - Fully featured network monitoring system that provides a wealth of features and device support.
 * [Monit](http://mmonit.com/monit/#home) - Small utility for managing and monitoring Unix systems.