Update README.md

Author: fullstackduck

README.md

@@ -4,7 +4,7 @@ Capacitor plugin for Google Auth.
 ## Contributions
 PRs are welcome and much appreciated that keeps this plugin up to date with Capacitor and official Google Auth platform library feature parity.
 
-Try to follow good code practices.
+Try to follow good code practices. You can even help keeping the included demo updated.
 
 PRs for features that are not aligned with the official Google Auth library are discouraged.