add a little readme

README.md

@@ -3,3 +3,17 @@ Test OAuth2 Authorization Code Grant process
 
 Code is quite minimal done in js with no lib.
 
+
+## Running the Demo
+
+If you don't want to use sws, you can use python 3.
+
+``` python
+python server.py
+```
+
+## Utility scripts
+
+Modify `scripts/get_refresh_token` to retrieve a refresh/access token from the CTR API. 
+
+Modify `scripts/test_access_token` to use your access token to query the CTR API.