Update README.md

Author: Vamshi-Microsoft

README.md

@@ -175,7 +175,7 @@ Customers have the option to deploy this solution with PostgreSQL or Cosmos DB.
 - Cosmos DB enables chat history and is a NoSQL-based solution. With Cosmos DB, Azure AI Search is used for storing extracted documents and embeddings.
 
 
-To review PostgreSQL configuration overview and steps, follow the link [here](docs/postgreSQL.md).
+To review PostgreSQL configuration overview and steps, follow the link [here](docs/postgreSQL_test.md).
 ![Solution Architecture - Chat with your data PostgreSQL](/docs/images/architecture_pg.png)
 
 To review Cosmos DB configuration overview and steps, follow the link [here](docs/employee_assistance.md).