TRACING-4066: add documentation for forward connector

Signed-off-by: Israel Blancas <[email protected]>

Author: iblancasa

modules/otel-collector-components.adoc

@@ -740,6 +740,49 @@ The Kafka exporter exports logs, metrics, and traces to Kafka. This exporter use
 
 Connectors connect two pipelines.
 
+[id="forward-connector_{context}"]
+=== Forward Connector
+
+:FeatureName: The Forward Connector
+include::snippets/technology-preview.adoc[]
+
+The Forward Connector merges two pipelines of the same type.
+
+.OpenTelemetry Collector custom resource with an enabled Forward Connector
+[source,yaml]
+----
+receivers:
+  otlp:
+    protocols:
+      grpc:
+  jaeger:
+    protocols:
+      grpc:
+processors:
+  batch:
+exporters:
+  otlp:
+    endpoint: tempo-simplest-distributor:4317
+    tls:
+      insecure: true
+connectors:
+  forward:
+service:
+  pipelines:
+    traces/regiona:
+      receivers: [otlp]
+      processors: []
+      exporters: [forward]
+    traces/regionb:
+      receivers: [jaeger]
+      processors: []
+      exporters: [forward]
+    traces:
+      receivers: [forward]
+      processors: [batch]
+      exporters: [otlp]
+----
+
 [id="spanmetrics-connector_{context}"]
 === Spanmetrics connector