[FrameworkBundle] add changes to upgrade file too

Author: xabbuh

CHANGELOG.md

@@ -4,8 +4,8 @@ CHANGELOG
 3.2.0
 -----
 
- * The `Resources/public/images/*` files have been removed
- * The `Resources/public/css/*.css` files have been removed (they are now inlined in TwigBundle)
+ * The `Resources/public/images/*` files have been removed.
+ * The `Resources/public/css/*.css` files have been removed (they are now inlined in TwigBundle).
  * The `Controller::getUser()` method has been deprecated and will be removed in
    Symfony 4.0; typehint the security user object in the action instead.
  * Added possibility to prioritize form type extensions with `'priority'` attribute on tags `form.type_extension`