output: opentelemetry minor updates

Author: olegbespalov

docs/sources/k6/next/results-output/real-time/_index.md

@@ -27,6 +27,7 @@ You can also stream real-time metrics to:
 
 As well as the following third-party services:
 
+- [OpenTelemetry](https://grafana.com/docs/k6/<K6_VERSION>/results-output/real-time/opentelemetry)
 - [Amazon CloudWatch](https://grafana.com/docs/k6/<K6_VERSION>/results-output/real-time/amazon-cloudwatch)
 - [Apache Kafka](https://grafana.com/docs/k6/<K6_VERSION>/results-output/real-time/apache-kafka)
 - [Datadog](https://grafana.com/docs/k6/<K6_VERSION>/results-output/real-time/datadog)

docs/sources/k6/next/results-output/real-time/opentelemetry.md

@@ -8,20 +8,18 @@ weight: 00
 
 Grafana k6 can push test run metrics in the [OpenTelemetry (OTEL) metrics format](https://opentelemetry.io/docs/specs/otel/metrics/) to an OTEL metrics collector or a metrics backend that supports the OTEL metrics format by using the experimental OpenTelemetry output `--out experimental-opentelemetry`.
 
-Note that the `experimental-opentelemetry` became a part of k6 only with k6 v0.53.0, so prior that version you should use the [xk6-output-opentelemetry extension](https://github.com/grafana/xk6-output-opentelemetry/).
-
-For any feedback, bugs or suggestions feel free to [open an issue](https://github.com/grafana/xk6-output-opentelemetry/issues) directly in the output repository. Contributions are also welcome!
+For any feedback, bugs or suggestions feel free to [open an issue](https://github.com/grafana/k6/issues) directly in the k6 repository. Contributions are also welcome!
 
 ## Metrics mapping
 
 k6 converts all [k6 metric types](https://grafana.com/docs/k6/<K6_VERSION>/using-k6/metrics) to an equivalent [OTEL metric type](https://opentelemetry.io/docs/specs/otel/metrics/data-model/#timeseries-model), and all k6 tags to OTEL attributes. When possible, the units are also passed with the metrics.
 
-| k6 Metric | OpenTelemetry Metric                                                                                                                                                                                                                                                                                                                                                                                                  |
-| --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| Counter   | `Float64CounterOption`                                                                                                                                                                                                                                                                                                                                                                                                |
-| Gauge     | `Float64ObservableGauge`                                                                                                                                                                                                                                                                                                                                                                                              |
-| Rate      | Split into two `Int64Counter` counters named `metric_name.occurred` and `metric_name.total`. `metric_name.occurred` counts only the number of non-zero occurrences, and `metric_name.total` registers the total number of positive and negative occurrences. This might change in the future, refer to [xk6-output-opentelemetry#12](https://github.com/grafana/xk6-output-opentelemetry/issues/12) for more details. |
-| Trend     | `Float64Histogram`                                                                                                                                                                                                                                                                                                                                                                                                    |
+| k6 Metric | OpenTelemetry Metric                                                                                                                                                                                                                                                                                                                                                          |
+| --------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Counter   | `Float64CounterOption`                                                                                                                                                                                                                                                                                                                                                        |
+| Gauge     | `Float64ObservableGauge`                                                                                                                                                                                                                                                                                                                                                      |
+| Rate      | Split into two `Int64Counter` counters named `metric_name.occurred` and `metric_name.total`. `metric_name.occurred` counts only the number of non-zero occurrences, and `metric_name.total` registers the total number of positive and negative occurrences. This might change in the future, refer to [k6#4573](https://github.com/grafana/k6/issues/4573) for more details. |
+| Trend     | `Float64Histogram`                                                                                                                                                                                                                                                                                                                                                            |
 
 ## Run the k6 test