Update README.md

fixed toc

Author: AlexanderHodicke

application-development/ai-cloud-services/document-understanding/README.md

@@ -4,7 +4,7 @@ Oracle Cloud Infrastructure (OCI) Document Understanding is an AI service that e
 
 # Table of Contents
 
-1. [Publications](#publications)
+1. [Publications](#team-publications)
 1. [Demos](#demos)
 3. [LiveLabs and Workshops](#livelabs-and-workshops) 
 4. [Reusable Assets](#reusable-assets)