Fix CHANGELOG

Author: cynthiakedu

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased](https://github.com/open-telemetry/opentelemetry-python-contrib/compare/v0.19b0...HEAD)
 
 ### Changed
+- Fix broken links to project ([#419](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/419))
 - Restrict DataDog exporter's `ddtrace` dependency to known working versions.
   ([#400](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/400))
 - GRPC instrumentation now correctly injects trace context into outgoing requests.
@@ -103,7 +104,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#273](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/273))
 
 ### Changed
-- Fix broken links to project ([#413](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/413))
 - `opentelemetry-instrumentation-asgi`, `opentelemetry-instrumentation-wsgi` Return `None` for `CarrierGetter` if key not found
   ([#233](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/233))
 - `opentelemetry-instrumentation-grpc` Comply with updated spec, rework tests