Update docs changelog (for PR #59411) (#60055)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Vanessa <vgrl@github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: 4 people

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Docs changelog
 
+**5 March 2026**
+
+We've updated our documentation to include a series of articles about the GitHub integration in Teams (previously, docs for the integration lived in a public repository).
+
+See [GitHub integration in Teams](https://docs.github.com/integrations/how-tos/teams).
+
+<hr>
+
 **3 March 2026**
 
 We've added a new reference article, [Copilot customization cheat sheet](https://docs.github.com/copilot/reference/customization-cheat-sheet), to help you choose the right Copilot customization approach for your workflow.