doc: add entry to changelog

CHANGELOG.md

@@ -14,6 +14,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Added support exporting logs via OTLP over gRPC in `go.opentelemetry.io/contrib/config`. (#6340)
 - The `go.opentelemetry.io/contrib/bridges/otellogr` module.
   This module provides an OpenTelemetry logging bridge for `github.com/go-logr/logr`. (#6386)
+- Added SNS instrumentation in `go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-sdk-go-v2/otelaws`. (#6388)
 
 ### Changed
 
@@ -41,7 +42,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
   - Use `baggagecopy.NewLogProcessor` when configuring a Log Provider.
     - `NewLogProcessor` accepts a `Filter` function type that selects which baggage members are added to the log record.
 
-### Changed 
+### Changed
 
 - Transform raw (`slog.KindAny`) attribute values to matching `log.Value` types.
   For example, `[]string{"foo", "bar"}` attribute value is now transformed to `log.SliceValue(log.StringValue("foo"), log.StringValue("bar"))` instead of `log.String("[foo bar"])`. (#6254)