fix abra app cp command

README.md

@@ -23,9 +23,9 @@ Custom HTML website, served using Nginx.
 4. `abra app config YOURAPPDOMAIN` - be sure to change `$DOMAIN` to something that resolves to
    your Docker swarm box
 5. `abra app deploy YOURAPPDOMAIN`
-6. Copy your files to the container, using something like
+6. Copy your files to the container using:
 ```
-abra app YOURAPPDOMAIN cp index.html app:/usr/share/nginx/html
+abra app cp YOURAPPDOMAIN index.html app:/usr/share/nginx/html
 ```
 
 [`abra`]: https://git.autonomic.zone/autonomic-cooperative/abra