Add custom domain monitoring and update documentation

README.md

@@ -10,6 +10,7 @@ Adguard Monitor is designed for openclaw, which should usually NEVER make a requ
 -   **Multi-Client Support**: Monitor specific IP addresses and receive nicknamed notifications (e.g., "BLOCKED: My Laptop").
 -   **Strict Configuration**: Fails fast if environment variables are missing.
 -   **Home Assistant Notifications**: Native mobile push messages for blocked queries.
+-   **Custom Domain Monitoring**: Monitor specific domains using [list.txt](list.txt) (wildcards supported).
 -   **Structured Logging**: UTF-8 encoded logging for unicode emoji support.
 
 ## Setup
@@ -24,7 +25,15 @@ Adguard Monitor is designed for openclaw, which should usually NEVER make a requ
     ```bash
     cp .env.example .env
     ```
-4.  **Run the monitor**:
+4.  **Custom Domains (Optional)**:
+    Copy [list.example.txt](list.example.txt) to `list.txt` and add domains:
+    ```bash
+    cp list.example.txt list.txt
+    ```
+    - Lines starting with `!` are **negative filters** (they will be ignored).
+    - Wildcards like `*.example.com` are supported.
+
+5.  **Run the monitor**:
     ```bash
     python monitor.py --interval 15
     ```