DOCSP-40741 Add integrations to C# landing page (#215)

Author: jordan-smith721

source/languages/csharp.txt

@@ -29,8 +29,8 @@ other MongoDB language drivers and includes a LINQ provider for
 
 `C# Driver Documentation → <https://www.mongodb.com/docs/drivers/csharp/current/>`__
 
-Framework
----------
+Frameworks and Integrations
+---------------------------
 
 The Entity Framework Core Provider allows you to use MongoDB with Microsoft's
 Entity Framework Core as an object-relational mapper. You can
@@ -39,6 +39,16 @@ modeling and change tracking.
 
 `Get Started With the Entity Framework Core Provider → <https://www.mongodb.com/docs/entity-framework/current/>`__
 
+Integrate Atlas Vector Search with Microsoft Semantic Kernal to build AI
+applications and implement retrieval-augmented generation (RAG).
+
+`Learn More About Microsoft Semantic Kernal → <https://learn.microsoft.com/en-us/semantic-kernel/overview/>`__
+
+Integrate MongoDB with your Microsoft .NET-based application by using the .NET
+Aspire MongoDB Database Integration.
+
+`Get Started With the .NET Aspire MongoDB Database Integration → <https://learn.microsoft.com/en-us/dotnet/aspire/database/mongodb-integration>`__
+
 Libraries and Extensions
 ------------------------