Update CHANGELOG.md

Co-authored-by: Srikanth Chekuri <[email protected]>

Author: rafa-munoz

CHANGELOG.md

@@ -17,7 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#1690](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1690))
 - Add metrics instrumentation for sqlalchemy
   ([#1645](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1645))
-- Make requests span attributes available to Django sampler
+- Make Django request span attributes available for `start_span`. 
   ([#1645](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1645))