add new flag to docs
@@ -87,6 +87,11 @@ The `[--output]` flag is used to select one or multiple output already defined i
Outputs defined under target take precedence over this flag, see [defining outputs](../advanced/multi_outputs/output_intro.md) and [defining targets](../advanced/multi_targets)
+#### watch-config
+The `[--watch-config]` flag is used to enable automatic target loading from the configuration source at runtime.
+
+On each configuration change, gnmic reloads the list of targets, subscribes to new targets and/or deletes subscriptions to the deleted ones
+
### Examples
#### 1. streaming, target-defined, 10s interval
```bash
