Add temperature monitoring and optional server URL links to dashboard

README.md

@@ -50,9 +50,9 @@ Edit `infrastructure.conf` to define your servers:
 
 ```
 Production
-  root@prod-web-01
+  root@prod-web-01 https://web01.example.com
   root@prod-db-01
-  deploy@prod-app-01
+  deploy@prod-app-01 https://app01.example.com:8080
 
 Development
   deploy@dev-01
@@ -60,7 +60,8 @@ Development
 ```
 
 - Group names are freeform labels (no indentation)
-- Servers are indented with `USERNAME@HOSTNAME`
+- Servers are indented with `USERNAME@HOSTNAME [URL]`
+- An optional URL after the host adds a clickable link on the dashboard
 - Lines starting with `#` are comments
 
 ### 3. Install