Update README.md to reflect lack of Cloud Key Gen 2 support

README.md

@@ -7,6 +7,8 @@ This should work on UbiOS based firmware versions 1.7.0 onwards. This includes:
 * UniFi Dream Machine
 * UniFi Dream Machine Pro
 
+It does *NOT* support the Cloud Key Gen 2 or Gen 2 Plus as they do not ship with Docker (podman) support.
+
 This script supports issuing LetsEncrypt certificates via DNS using [Lego](https://go-acme.github.io/lego/).
 
 Out of the box, it has tested support for select [DNS providers](#dns-providers) but with little work you could get it working with any of the supported [Lego DNS Providers](https://go-acme.github.io/lego/dns/).
@@ -60,4 +62,4 @@ The CLI will output a JSON object. Use the printed properties to initialize your
 
 Note:
 - The `password` value is a secret and as such you may want to omit it from [udm-le.env](./udm-le.env) and instead set it in a `.secrets/client-secret.txt` file
-- The `appId` value is what [Lego](https://go-acme.github.io/lego/) calls a client id
+- The `appId` value is what [Lego](https://go-acme.github.io/lego/) calls a client id