Add a 'demo' section to the README

README.md

@@ -23,6 +23,19 @@ A mirror of the code is available at:
   https://code.ffdn.org/zorun/coin/
 
 
+Demo
+====
+
+A demo of COIN is publicly available at:
+
+  https://coin-dev.illyse.org
+
+Login: ffdn
+Password: internet
+
+This user account has access to the administration interface.
+
+
 Quickstart
 ==========