chore(docs): update changelog

Author: strager

docs/CHANGELOG.md

@@ -13,6 +13,14 @@ Semantic Versioning.
 * When using the `de`, `fr_FR`, or `sv_SV` locale, some error messages are no
   longer blank.
 
+## Changed
+
+* The Windows MSIX installer is now signed with a Microsoft-trusted certificate.
+  If you installed quick-lint-js using a prior version of the MSIX installer,
+  Windows won't let you upgrade. Uninstall the old version of quick-lint-js
+  before installing a new version.
+* The Windows executable is now signed with a Microsoft-trusted certificate.
+
 ## 2.4.0 (2022-04-15)
 
 [Downloads](https://c.quick-lint-js.com/releases/2.4.0/)