update TOC with .NET node

Author: craigshoemaker

articles/container-apps/TOC.yml

@@ -289,6 +289,12 @@
       href: vnet-custom.md
 - name: Languages and runtimes
   items:
+    - name: .NET
+      items:
+      - name: Deploy a .NET Aspire app
+        href: /aspnet/core/host-and-deploy/scaling-aspnet-apps/scaling-aspnet-apps
+      - name: Deploy and scale an ASP.NET Core app
+        href: /dotnet/aspire/deployment/azure/aca-deployment
     - name: Java
       items:
       - name: Overview