docs: add note to configuration readme (#371)

CONFIGURATION.md

@@ -62,7 +62,7 @@ If you've set READ_REPLICAS to 4, you should configure RR0_ through RR3_.
 
 # Settings
 
-Running `nostream` for the first time creates the settings file in `<project_root>/.nostr/settings.yaml`. If the file is not created and an error is thrown ensure that the `<project_root>/.nostr` folder exists. The configuration directory can be changed by setting the `NOSTR_CONFIG_DIR` environment variable.
+Running `nostream` for the first time creates the settings file in `<project_root>/.nostr/settings.yaml`. If the file is not created and an error is thrown ensure that the `<project_root>/.nostr` folder exists. The configuration directory can be changed by setting the `NOSTR_CONFIG_DIR` environment variable. `nostream` will pick up any changes to this settings file without needing to restart.
 
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