add link to cloudflare docs

Author: Boy132

subdomains/README.md

@@ -4,7 +4,7 @@ Allows users to create and manage custom subdomains (A/AAAA or SRV) for their ga
 
 ## Setup
 
-Create a Cloudflare API token and enter it via the plugin settings.  
+[Create a Cloudflare API token](https://developers.cloudflare.com/fundamentals/api/get-started/create-token/) and enter it via the plugin settings.  
 The token needs to have read permissions for `Zone.Zone` and write for `Zone.Dns`. For better security you can also set the `Zone Resources` to exclude certain domains and add the panel ip to the `Client IP Address Filtering`.
 
 Note: You can't create subdomains for servers with `0.0.0.0` or `::` as allocation!