diff --git a/README.md b/README.md
index 6265a3b..ab67e02 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,15 @@ You can generate type-safe constants for all your Home Assistant entities using
 ```yaml
 url: "http://192.168.1.123:8123"  
 ha_auth_token: "your_auth_token"  # Or set HA_AUTH_TOKEN env var
-home_zone_entity_id: "zone.home"
+home_zone_entity_id: "zone.home"  # Optional: defaults to zone.home
+
+# Optional: List of domains to include when generating constants
+# If provided, only these domains will be processed
+include_domains: ["light", "switch", "climate"]
+
+# Optional: List of domains to exclude when generating constants
+# Only used if include_domains is empty
+exclude_domains: ["device_tracker", "person"]
 ```
 
 2. Add a `//go:generate` comment in your project: