Update changelog

Author: rmk135

docs/main/changelog.rst

@@ -7,6 +7,15 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
+
+Development
+-----------
+- Update copyright year.
+- Update typing in the main example and cohesion/coupling correlation definition in
+  "Dependency injection and inversion of control in Python".
+  Thanks to `@illia-v (Illia Volochii) <https://github.com/illia-v>`_ for the
+  PR (`#580 <https://github.com/ets-labs/python-dependency-injector/pull/580>`_).
+
 4.39.1
 ------
 - Fix bug `#574 <https://github.com/ets-labs/python-dependency-injector/issues/574>`_: