Update docs.

docs/en/setup/service-agent/java-agent/Agent-self-observability.md

@@ -12,4 +12,5 @@ which are ultimately presented on the [Java Agent self-observability dashboard](
 - `created_ignored_context_counter` and `finished_ignored_context_counter`. Same concepts like `*_tracing_context_counter`.
 - `interceptor_error_counter` - Counter. The number of errors happened in the interceptor logic, with `label=plugin_name, inter_type(constructor, inst, static)`. We don't add interceptor names into labels in case of OOM. The number of plugins is only dozens, it is predictable, but the number of interceptors will be hundreds.
 - `possible_leaked_context_counter` - Counter. The number of detected leaked contexts. It should include the `label=source(value=tracing, ignore)`. When `source=tracing`, it is today's shadow tracing context. But now, it is measured.
-- `tracing_context_performance` - Histogram. For successfully finished tracing context, it measures every interceptor's time cost(by using nanoseconds), the buckets of the histogram are {0.001, 0.01, 0.05, 0.1, 0.3, 0.5, 1, 5, 10, 20, 50, 100}ms. This provides the performance behavior for the tracing operations.
+- `tracing_context_performance` - Histogram. For successfully finished tracing context, it measures every interceptor's time cost(by using nanoseconds), the buckets of the histogram are {1000, 10000, 50000, 100000, 300000, 500000,
+  1000000, 5000000, 10000000, 20000000, 50000000, 100000000}ns. This provides the performance behavior for the tracing operations.