Update README.md

README.md

@@ -32,3 +32,24 @@
 
 2. Or Paste the contents of remote-backrest.yml into an existing remote host yml file.
 
+
+## Remote Host yml files must use this format:
+
+```yaml 
+http:
+  routers:
+    # Each service gets a route definition here
+
+  services:
+    # Each service gets a service definition here
+```
+
+**To copy an example remote host yml file into an existing remote host yml file**  
+
+1. Copy the contents of the routers section into the existing routers section  
+Be sure to change the `rule: "Host ('service.server.subdomain.duckdns.org')"` line to your desired url for the service  
+
+2. And Copy the content of the services section into the existing services section  
+Be sure to change the ip:port in `- url: "http://ip:port"`  
+Use http here, not https  
+