Merge pull request #788 from dragoangel/patch-3

Add info about settings_id in worker-proxy docs

doc/workers/rspamd_proxy.md

@@ -93,6 +93,7 @@ upstream "scan" {
   hosts = "round-robin:host1:11333:10,host2:11333:10,host3:11333:5,host4:11333:5";
   key = "..."; # Public key for encryption, generated by rspamadm keypair (optional)
   compression = yes; # Use zstd compression (optional)
+  settings_id = "name"; # Apply a custom setting from the user settings module (optional)
 }
 ~~~
 
@@ -128,6 +129,10 @@ mirror "test" {
 }
 ~~~
 
+### User settings
+
+The proxy worker can apply a specific setting using the `settings_id` configured in an upstream through the [user settings module]({{ site.baseurl }}/doc/configuration/settings.html). Ensure that the user settings module includes a setting with the same name as defined in `settings_id`.
+
 ### Compare scripts
 
 Comparison scripts are designed for executing straightforward actions with the results obtained from a mirror and the main cluster machine. These scripts do not support asynchronous requests, so your options are limited to logging or writing to files. Below is a basic example of such a script in the configuration: