[chore] Added docs for the edge processor (#1983)

* Added docs for the edge processor

Author: sbylica-splunk

docs/advanced-configuration.md

@@ -893,6 +893,22 @@ agent:
            storage: null
 ```
 
+## Using Edge Processor
+
+The [Edge Processor solution](https://help.splunk.com/splunk-cloud-platform/process-data-at-the-edge/use-edge-processors) is a data processing tool that can be used to enrich and filter your logs using SPL2.
+
+Edge processor can be used to send data to various destinations, such as Splunk cloud or an Amazon S3 bucket. You can read more about [destinations here](https://help.splunk.com/en/splunk-cloud-platform/process-data-at-the-edge/use-edge-processors/10.0.2503/send-data-out-from-edge-processors/how-the-destination-for-edge-processor-works).
+
+To configure a HEC Edge processor destination you can use a basic configuration like this:
+
+```yaml
+splunkPlatform:
+  endpoint: "https://x.x.x.x:8088/services/collector"
+  token: "xxxxxx"
+```
+
+Remember that the endpoint will be the instance where you configured the edge processor, and the token will be the token created in Splunk for more information you can check [here](https://docs.splunk.com/Documentation/SplunkCloud/latest/EdgeProcessor/HECSource).
+
 ### Support for persistent queue
 
 * `GKE/Autopilot` and `EKS/Fargate` support