Clarify the defaults switched

README.md

@@ -54,7 +54,14 @@ previous stable release.
 For Foreman 1.16 or older, please use the 9.x release series of this module.
 The parameters `locations_enabled`, `organizations_enabled` and `authentication`
 will only have any affect on Foreman 1.20 or older, in newer versions these
-settings have been removed.
+settings have been removed. In Foreman 1.20 and older the Foreman's built in
+defaults differed from the module's defaults.
+
+| Setting                | Foreman 1.20 | puppet-foreman 10.x |
+|------------------------|--------------|---------------------|
+| authentication (login) | false        | true                |
+| locations_enabled      | true         | false               |
+| organizations_enabled  | true         | false               |
 
 ## Types and providers