Merge pull request #223469 from richagaur/richagaur/serverless-1tb

updated TOC for serverless 1 TB (preview) doc

Author: ttorble

articles/cosmos-db/nosql/TOC.yml

@@ -188,7 +188,11 @@
             - name: Autoscale FAQ
               href: ../autoscale-faq.yml
         - name: Serverless
-          href: ../serverless.md
+          items: 
+            - name: Serverless Overview
+              href: ../serverless.md
+            - name: Serverless 1 TB container (preview)
+              href: ../serverless-1TB.md
         - name: Choose between autoscale and standard (manual) throughput
           href: ../how-to-choose-offer.md
         - name: Choose between provisioned throughput and serverless