Open Hardware Monitor (influxdata#8646)

Co-authored-by: Mariano <[email protected]>

EXTERNAL_PLUGINS.md

@@ -13,6 +13,7 @@ Pull requests welcome.
 - [awsalarms](https://github.com/vipinvkmenon/awsalarms) - Simple plugin to gather/monitor alarms generated  in AWS.
 - [octoprint](https://github.com/BattleBas/octoprint-telegraf-plugin) - Gather 3d print information from the octoprint API.
 - [systemd-timings](https://github.com/pdmorrow/telegraf-execd-systemd-timings) - Gather systemd boot and unit timestamp metrics.
+- [open-hardware-monitor](https://github.com/marianob85/open_hardware_monitor-telegraf-plugin) - Gather sensors data provided by [Open hardware Monitor](http://openhardwaremonitor.org)
 
 ## Outputs
 - [kinesis](https://github.com/morfien101/telegraf-output-kinesis) - Aggregation and compression of metrics to send Amazon Kinesis.