README.md in foreman_setup-2.1.1 vs README.md in foreman_setup-3.0.0

@@ -14,9 +14,17 @@
 installation.
 
 RPM users can install the "ruby193-rubygem-foreman_setup" or
 "rubygem-foreman_setup" packages.
 
+## Compatibility
+
+| Foreman Version | Plugin Version |
+| --------------- | --------------:|
+| <= 1.4          | ~> 1.0         |
+| >= 1.5          | ~> 2.0         |
+| >= 1.9          | ~> 3.0         |
+
 # Areas this should help
 
 * take input of subnet and domain information
 * output foreman-installer command with appropriate DHCP, DNS and TFTP parameters
 * add foreman-installer modules to the Foreman host with appropriate parameters