Merge pull request awesome-foss#190 from jvrplmlmn/seyren

Added Seyren to monitoring tools.

README.md

@@ -383,6 +383,7 @@ Please read [CONTRIBUTING](./CONTRIBUTING.md) if you wish to add software.
 * [Riemann](http://riemann.io/) - Flexible and fast events processor allowing complex events/metrics analysis.
 * [Sensu](http://sensuapp.org/) - Open source monitoring framework.
 * [Sentry](https://getsentry.com/) - Application monitoring, event logging and aggregation.
+* [Seyren](https://github.com/scobal/seyren) - An alerting dashboard for Graphite.
 * [Shinken](http://www.shinken-monitoring.org/) - Another monitoring framework.
 * [Xymon](http://www.xymon.com/) - Network monitoring inspired by Big Brother.
 * [Zabbix](http://www.zabbix.com/) - Enterprise-class software for monitoring of networks and applications.