docs: add extra notes in readme

Author: IGLADI

README.md

@@ -68,6 +68,10 @@ Pi-DNStack is an automated solution for deploying a containerized DNS management
     192.168.1.10 ansible_user=ansible
     ```
 
+    > [!NOTE]
+    > If you have a single server, you can just copy this example and replace the IP address and user.  
+    > The specified user must have sudo privileges on the target system.
+
 3.  **Configure Deployment**
 
     Copy and modify the configuration template:
@@ -86,9 +90,13 @@ Pi-DNStack is an automated solution for deploying a containerized DNS management
     pwsh ./main.ps1 -ConfigPath ./main.psd1
     ```
 
+    > [!WARNING]
+    > Make sure you run the above command from your **workstation**, not directly on the target server(s).  
+    > Please ensure SSH access is properly configured.
+
 5.  **Enjoy!**
 
-    After deployment, access the Pi-hole web interface at: `http://<server-ip>:<port>/admin/login.php`, [configure your clients](https://www.windowscentral.com/how-change-your-pcs-dns-settings-windows-10#:~:text=HOW%20TO%20CHANGE%20DNS%20SETTINGS%20USING%20SETTINGS%20ON%20WINDOWS%2010) to use Pi-DNStack as DNS server and enjoy your new DNS management stack!
+    After deployment, access the Pi-hole web interface at: `http://<server-ip>:<port>/admin/login`, [configure your clients](https://www.windowscentral.com/how-change-your-pcs-dns-settings-windows-10#:~:text=HOW%20TO%20CHANGE%20DNS%20SETTINGS%20USING%20SETTINGS%20ON%20WINDOWS%2010) to use Pi-DNStack as DNS server and enjoy your new DNS management stack!
 
     > [!WARNING]
     > Clients must be able to reach your server on port 53 (DNS).