Update DiagnosticSource docs

Author: russcam

docs/client-concepts/troubleshooting/diagnostic-source.asciidoc

@@ -69,25 +69,25 @@ private class ListenerObserver : IObserver<DiagnosticListener>, IDisposable
         }
 
         TrySubscribe(DiagnosticSources.AuditTrailEvents.SourceName,
-            () => new AuditDiagnosticObserver(v => WriteToConsole(v.EventName, v.Audit)));
+            () => new AuditDiagnosticObserver(v => WriteToConsole(v.Key, v.Value)));
 
         TrySubscribe(DiagnosticSources.Serializer.SourceName,
-            () => new SerializerDiagnosticObserver(v => WriteToConsole(v.EventName, v.Registration)));
+            () => new SerializerDiagnosticObserver(v => WriteToConsole(v.Key, v.Value)));
         /**
          * RequestPipeline emits a different context object for the start of the `Activity` then it does
          * for the end of the `Activity` therefor `RequestPipelineDiagnosticObserver` accepts two `onNext` lambda's.
          * One for the `.Start` events and one for the `.Stop` events.
          */
         TrySubscribe(DiagnosticSources.RequestPipeline.SourceName,
             () => new RequestPipelineDiagnosticObserver(
-                v => WriteToConsole(v.EventName, v.RequestData),
-                v => WriteToConsole(v.EventName, v.Response)
+                v => WriteToConsole(v.Key, v.Value),
+                v => WriteToConsole(v.Key, v.Value)
             ));
 
         TrySubscribe(DiagnosticSources.HttpConnection.SourceName,
             () => new HttpConnectionDiagnosticObserver(
-                v => WriteToConsole(v.EventName, v.RequestData),
-                v => WriteToConsole(v.EventName, v.StatusCode)
+                v => WriteToConsole(v.Key, v.Value),
+                v => WriteToConsole(v.Key, v.Value)
             ));
     }