Fix CHANGELOG.md formatting for PR #3766 reference

CHANGELOG.md

@@ -19,8 +19,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add `rstcheck` to pre-commit to stop introducing invalid RST
   ([#3777](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3777))
 
-- `opentelemetry-exporter-credential-provider-gcp`: create this package which provides support for supplying your machine's Application Default Credentials (https://cloud.google.com/docs/authentication/application-default-credentials) to the OTLP Exporters created automatically by OpenTelemetry Python's auto instrumentation. These credentials authorize OTLP traces to be sent to `telemetry.googleapis.com`. 
-[#3766](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3766).
+- `opentelemetry-exporter-credential-provider-gcp`: create this package which provides support for supplying your machine's Application Default Credentials (https://cloud.google.com/docs/authentication/application-default-credentials) to the OTLP Exporters created automatically by OpenTelemetry Python's auto instrumentation. These credentials authorize OTLP traces to be sent to `telemetry.googleapis.com`
+  ([#3766](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3766)).
 
 ## Version 1.37.0/0.58b0 (2025-09-11)
 

instrumentation/opentelemetry-instrumentation-fastapi/README.rst

@@ -20,7 +20,37 @@ Installation
     pip install opentelemetry-instrumentation-fastapi
 
 References
-----------
 
 * `OpenTelemetry Project <https://opentelemetry.io/>`_
 * `OpenTelemetry Python Examples <https://github.com/open-telemetry/opentelemetry-python/tree/main/docs/examples>`_
+
+ Configuration & Usage Notes
+ --------------------------
+
+ **Environment Variables**
+
+ OpenTelemetry Python supports standard environment variables for configuration, including:
+
+ - ``OTEL_EXPORTER_OTLP_ENDPOINT``
+ - ``OTEL_EXPORTER_OTLP_PROTOCOL``
+ - ``OTEL_SERVICE_NAME``
+ - ``OTEL_TRACES_EXPORTER``, ``OTEL_METRICS_EXPORTER``
+
+ These can be set to configure exporters, service name, and other options. See the `OpenTelemetry Python documentation <https://opentelemetry-python.readthedocs.io/en/latest/getting-started.html#environment-variables>`_ for a full list.
+
+ **Trace Propagation**
+
+ Trace context propagation works automatically for HTTP requests. The instrumentation uses W3C Trace Context and Baggage headers for distributed tracing. No manual intervention is required for standard HTTP requests.
+
+ **WebSocket Support**
+
+ Automatic trace propagation for WebSocket connections is limited. You may need to manually create and propagate spans for WebSocket handlers in FastAPI applications.
+
+ **Logging Integration**
+
+ To integrate logs as events in traces, use the ``opentelemetry-instrumentation-logging`` package and configure your logger with OpenTelemetry's logging handler. This allows logs to be attached to traces as events. See the `OpenTelemetry Python logging documentation <https://opentelemetry-python.readthedocs.io/en/latest/instrumentation/logging/logging.html>`_.
+
+ **Related Packages**
+
+ - `opentelemetry-instrumentation <https://pypi.org/project/opentelemetry-instrumentation/>`_
+ - `opentelemetry-instrumentation-fastapi <https://pypi.org/project/opentelemetry-instrumentation-fastapi/>`_