Added the release notes MD file and corresponding node entry in the TOC.html file for the Weekly Nuget Release - December 28, 2022

Author: DeepakRajSundar

aspnet-core/Release-Notes/v20.4.0.40.md

@@ -0,0 +1,16 @@
+---
+title: Essential Studio for ASP.NET Core Weekly Nuget Release Release Notes  
+description: Essential Studio for ASP.NET Core Weekly Nuget Release Release Notes  
+platform: aspnet-core
+documentation: ug
+---
+
+# Essential Studio for ASP.NET Core  Release Notes  
+
+{% include release-info.html date="December 28, 2022"  version="v20.4.0.40" %} 
+
+{% directory path: _includes/release-notes/v20.4.0.40 %}
+
+{% include {{file.url}} %}
+
+{% enddirectory %}