Update README.md

2020-09-14 09:50:08 -07:00 · 2020-09-14 09:50:08 -07:00 · 0633507aa7
--- a/README.md
+++ b/README.md
@ -42,7 +42,8 @@ Please see instructions [here](https://docs.microsoft.com/en-us/azure/cognitive-

 ### Run as web application

-Using a modern Web browser, FOTT can be run directly at: https://fott.azurewebsites.net/
+Using a modern Web browser, FOTT can be run directly at: https://fott.azurewebsites.net/  (for Form Recognizer 2.0 GA services), and https://fott-preview.azurewebsites.net/  (for Form REcognizer 2.1-preview.* services). 
+Note: these web apps are for testing purpose only. 

 ### Run as desktop application