Making docker usage with localhost and external ip more clear

README.md

@@ -45,7 +45,14 @@ docker run -d --restart=always -p 3001:3001 -v uptime-kuma:/app/data --name upti
 
 ⚠️ Please use a **local volume** only. Other types such as NFS are not supported.
 
-Uptime Kuma is now running on http://localhost:3001
+Uptime Kuma is now running on http://<your_external_ip>:3001
+
+If you want to run it at localhost (without exposing port for other users or to use with nginx), you can expose port like that:
+
+```bash
+docker run -d --restart=always -p 127.0.0.1:3001:3001 -v uptime-kuma:/app/data --name uptime-kuma louislam/uptime-kuma:1
+```
+
 
 ### 💪🏻 Non-Docker