Rename attribute (#887)

Author: theletterf

docs/reference/edot-java/migration.md

@@ -100,7 +100,7 @@ For example: `OTEL_RESOURCE_ATTRIBUTES=service.version=1.2.3`.
 
 The Elastic [`environment`](apm-agent-java://reference/config-core.md#config-environment) option corresponds to setting the `deployment.environment.name` key in [OTEL_RESOURCE_ATTRIBUTES](https://opentelemetry.io/docs/concepts/sdk-configuration/general-sdk-configuration/#otel_resource_attributes).
 
-For example: `OTEL_RESOURCE_ATTRIBUTES=deployment.environment=testing`.
+For example: `OTEL_RESOURCE_ATTRIBUTES=deployment.environment.name=testing`.
 
 ### `global_labels`