PE-38490 Update README.md (#439)

* Update README.md

Clarifying that PEADM can install PE only on the operating systems supported for specific PE versions. Users should refer to the PE documentation for the version they want to install.

* edit note

* another edit

* reference Bolt operating systems

Author: J-Hunniford

README.md

@@ -70,15 +70,8 @@ groups:
 ### Requirements
 
 * PEADM is compatible with Puppet Enterprise 2019.8.1 or newer versions.
-* To use PEADM, you must first [install Bolt](https://www.puppet.com/docs/bolt/latest/bolt_installing) version 3.17.0 or newer.
-* PEADM supports PE installations on the following operating systems:
-  - Amazon Linux 2
-  - AlmaLinux 8
-  - CentOS 7 and 8
-  - RHEL 7, 8 and 9
-  - SLES 12
-  - Ubuntu 18.04 and 20.04
-
+* PEADM requires [Bolt](https://www.puppet.com/docs/bolt/latest/bolt_installing) version 3.17.0 or newer and works on operating systems supported by Bolt.  
+**Note:** You can use PEADM to install Puppet Enterprise (PE) onto any operating system platform that is supported by the specific PE version you want to install. To review operating system platforms supported by specific PE versions, refer to the PE documentation.
 * To successfully convert your current PE installation to a PEADM-managed installation, ensure that the PE setting for editing classifier configuration data is enabled. This setting is enabled by default on new PE installations, but it could be disabled if the relevant configuration was removed from your global hiera.yaml file. See the [PE docs](https://www.puppet.com/docs/pe/latest/config_console.html#enable_console_configuration_data) for more information.
 
 ## Usage