OBSDOCS-1430: Fix instrumentation example in OTEL docs

Signed-off-by: Pavol Loffay <p.loffay@gmail.com>

Author: pavolloffay

modules/otel-config-instrumentation.adoc

@@ -24,23 +24,40 @@ Instrumentation options are specified in an `Instrumentation` custom resource (C
 apiVersion: opentelemetry.io/v1alpha1
 kind: Instrumentation
 metadata:
-  name: java-instrumentation
+  name: instrumentation
 spec:
   env:
     - name: OTEL_EXPORTER_OTLP_TIMEOUT
       value: "20"
   exporter:
     endpoint: http://production-collector.observability.svc.cluster.local:4317
   propagators:
-    - w3c
+    - tracecontext
+    - baggage
   sampler:
     type: parentbased_traceidratio
-    argument: "0.25"
-  java:
-    env:
-    - name: OTEL_JAVAAGENT_DEBUG
-      value: "true"
+    argument: "1"
+  python: # <1>
+    env: # <2>
+      - name: OTEL_EXPORTER_OTLP_ENDPOINT
+        value: http://production-collector.observability.svc.cluster.local:4318
+  dotnet: # <3>
+    env: # <4>
+      - name: OTEL_EXPORTER_OTLP_ENDPOINT
+        value: http://production-collector.observability.svc.cluster.local:4318
+  go: # <5>
+    env: # <6>
+      - name: OTEL_EXPORTER_OTLP_ENDPOINT
+        value: http://production-collector.observability.svc.cluster.local:4318
 ----
+<1> Python auto-instrumentation uses protocol buffers over HTTP (HTTP/proto or HTTP/protobuf) by default.
+<2> Required if endpoint is set to `:4317`.
+<3> .NET auto-instrumentation uses protocol buffers over HTTP (HTTP/proto or HTTP/protobuf) by default.
+<4> Required if endpoint is set to `:4317`.
+<5> Go auto-instrumentation uses protocol buffers over HTTP (HTTP/proto or HTTP/protobuf) by default.
+<6> Required if endpoint is set to `:4317`.
++
+For more information about procol buffers, see link:https://protobuf.dev/overview/[Overview] (Protocol Buffers Documentation).
 
 //[cols=",,",options="header",]