Update Changelog

Author: tsantor

CHANGELOG.md

@@ -3,6 +3,12 @@ All enhancements and patches to Cookiecutter Django will be documented in this f
 
 <!-- GENERATOR_PLACEHOLDER -->
 
+## [2022-01-19]
+### Changed
+- Add swagger API documentation when DRF is enabled  ([#3536](https://github.com/cookiecutter/cookiecutter-django/pull/3536))
+### Updated
+- Update pre-commit to 2.17.0 ([#3541](https://github.com/cookiecutter/cookiecutter-django/pull/3541))
+
 ## [2022-01-17]
 ### Changed
 - Avoid docker image/volume collision by prefixing with project slug ([#3528](https://github.com/cookiecutter/cookiecutter-django/pull/3528))