Added the release notes MD file and corresponding node entry in the TOC.html file

Author: DeepakRajSundar

winui/Release-notes/v28.2.3.md

@@ -0,0 +1,16 @@
+---
+title: Essential Studio for WinUI 2024 Volume 4 SP Release Release Notes  
+description: Essential Studio for WinUI 2024 Volume 4 SP Release Release Notes  
+platform: winui
+documentation: ug
+---
+
+# Essential Studio for WinUI  Release Notes  
+
+{% include release-info.html date="January 28, 2025"  version="v28.2.3" %} 
+
+{% directory path: _includes/release-notes/v28.2.3 %}
+
+{% include {{file.url}} %}
+
+{% enddirectory %}