Add a release note for the navigation App Shortcuts

Author: crazytonyli

RELEASE-NOTES.txt

@@ -12,6 +12,8 @@
 * [*] Fix Blogging Reminders text color in dark mode [#25780]
 * [*] Share extensions: Fix the site picker showing an error while sites are still loading [#25798]
 * [*] Share Extension: Fix a crash after uploading a post to WordPress.com [#25773]
+* [*] Add App Shortcuts for creating a post and opening Notifications, Stats, and the Reader from Siri, Spotlight, and the Shortcuts app [#25754]
+
 
 27.0
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