Update README.md

Author: witold-swierzy

data-platform/autonomous-database/autonomous-json/oracle-api-for-mongodb-demos/README.md

@@ -3,7 +3,13 @@
 This repository contains scripts demonstrating capabilities of using Oracle API for MongoDB
 - NodeJS directory contains NodeJS programs/scripts using Oracle API for MongoDB
 - sql directory contains SQL scripts demonstrating Oracle Database support for JSON documents/document-oriented data model
+- data directory contains data files used in this demonstration(s)
 
+## Requirements
+- NodeJS installed
+- MongoDB Driver installed through npm
+- Visual Studio Code with NodeJS and SQLDeveloper plug ins
+- Oracle Database 23ai with Oracle API for MongoDB enabled
 
 ## License