pipeline: inputs: network-io-metrics: Add threading info

Signed-off-by: Alexa Kreizinger <alexakreizinger@gmail.com>

Author: alexakreizinger

pipeline/inputs/network-io-metrics.md

@@ -2,7 +2,7 @@
 
 The **netif** input plugin gathers network traffic information of the running system every certain interval of time, and reports them.
 
-The Network I/O Metrics plugin creates metrics that are log-based \(I.e. JSON payload\). If you are looking for Prometheus-based metrics please see the Node Exporter Metrics input plugin. 
+The Network I/O Metrics plugin creates metrics that are log-based \(I.e. JSON payload\). If you are looking for Prometheus-based metrics please see the Node Exporter Metrics input plugin.
 
 ## Configuration Parameters
 
@@ -15,6 +15,7 @@ The plugin supports the following configuration parameters:
 | Interval\_NSec | Polling interval \(nanosecond\). | 0 |
 | Verbose | If true, gather metrics precisely. | false |
 | Test\_At\_Init | If true, testing if the network interface is valid at initialization. | false |
+| Threaded | Indicates whether to run this input in its own [thread](../../administration/multithreading.md#inputs). | false |
 
 ## Getting Started
 
@@ -75,4 +76,3 @@ pipeline:
 Note: Total interval \(sec\) = Interval\_Sec + \(Interval\_Nsec / 1000000000\).
 
 e.g. 1.5s = 1s + 500000000ns
-