update readme

update readme to include instructions on how to switch between rooms and esignature examples

Author: paigesrossi

README.md

@@ -1,6 +1,11 @@
 # Python Launcher Code Examples
 
 ### Github repo: [code-examples-python](./)
+
+This GitHub repo includes code examples for both the DocuSign eSignature REST API as well as the DocuSign Rooms API. To use the Rooms API code example, modify the EXAMPLES_API_TYPE setting at the end of the ds_config.py file. Set 'Rooms' to True and 'ESignature' to False.
+
+**Note:** to use the Rooms API you must also [create your DocuSign Developer Account for Rooms](https://developers.docusign.com/docs/rooms-api/rooms101/create-account).
+
 ## Introduction
 This repo is a Python 3 application that demonstrates: