Update TOC.yml

Adding intelliJ support into the main TOC

Author: hangwan97

articles/container-apps/TOC.yml

@@ -29,6 +29,8 @@
           href: deploy-visual-studio.md
         - name: Visual Studio Code
           href: deploy-visual-studio-code.md
+        - name: IntelliJ
+          href: /azure/developer/java/toolkit-for-intellij/create-container-apps-intellij
       - name: Deploy from artifact
         items:
         - name: Command line