Change OpenTelemetry traces example of redact operator (#201)

Author: manototh

apl/tabular-operators/redact-operator.mdx

@@ -94,25 +94,25 @@ The query replaces all characters matching the pattern `.*` with the character `
 </Tab>
 <Tab title="OpenTelemetry traces">
 
-In OpenTelemetry traces, use `redact` to anonymize trace IDs with their hashes while preserving the service structure.
+In OpenTelemetry traces, use `redact` to anonymize Kubernetes node names with their hashes while preserving the service structure.
 
 **Query**
 
 ```kusto
 ['otel-demo-traces']
-| redact replaceHash=true @'.*' on trace_id
+| redact replaceHash=true @'.*' on ['resource.k8s.node.name']
 ```
 
-[Run in Playground](https://play.axiom.co/axiom-play-qf1k/query?initForm=%7B%22apl%22%3A%22%5B'otel-demo-traces'%5D%20%7C%20redact%20replaceHash%3Dtrue%20%40'.*'%20on%20trace_id%22%7D)
+[Run in Playground](https://play.axiom.co/axiom-play-qf1k/query?initForm=%7B%22apl%22%3A%22%5B'otel-demo-traces'%5D%20%7C%20redact%20replaceHash%3Dtrue%20%40'.*'%20on%20%5B'resource.k8s.node.name'%5D%22%7D)
 
 **Output**
 
-| _time               | trace_id          | service.name       |
+| _time               | resource.k8s.node.name          | service.name       |
 |---------------------|-------------------|--------------------|
 | 2025-01-01 12:00:00 | `QQXRv6VU`   | `frontend`         |
 | 2025-01-01 12:05:00 | `Q1urOteW`   | `checkoutservice`  |
 
-The query replaces trace IDs with hashed values while keeping the rest of the trace intact.
+The query replaces Kubernetes node names with hashed values while keeping the rest of the trace intact.
 
 </Tab>
 <Tab title="Security logs">