link to PR instead of issue in changelog

Signed-off-by: Dave Henderson <dhenderson@gmail.com>

CHANGELOG.md

@@ -15,7 +15,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Add the `messaging.url` & `messaging.system` attributes to all appropriate SQS operations in the `go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-sdk-go-v2/otelaws` package. (#2879)
 - Add example use of the metrics signal to `go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/example`. (#2610)
 - [otelgin] Add support for filters to the `go.opentelemetry.io/contrib/instrumentation/github.com/gin-gonic/gin/otelgin` package to provide the way to control which inbound requests are traced. (#2963)
-- `otelmux`: Add new `WithSpanNameFormatter` option to `go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux` to allow customizing span names. (#3040)
+- `otelmux`: Add new `WithSpanNameFormatter` option to `go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux` to allow customizing span names. (#3041)
 
 ### Fixed