fix(documentation): mixed up winston readme for hook (open-telemetry#910

)

Co-authored-by: Valentin Marchaud <contact@vmarchaud.fr>

plugins/node/opentelemetry-instrumentation-winston/README.md

@@ -30,7 +30,7 @@ registerInstrumentations({
     new WinstonInstrumentation({
       // Optional hook to insert additional context to log metadata.
       // Called after trace context is injected to metadata.
-      logHook: (record, span) => {
+      logHook: (span, record) => {
         record['resource.service.name'] = provider.resource.attributes['service.name'];
       },
     }),