Document ssh_hostname option
@@ -22,6 +22,7 @@ pyinfra @ssh/my-host.net ...
**Available Data**:
```py
+ssh_hostname = 'my-host.net' # defaults to the inventory name, but useful when you've got multiple hosts on one IP (e.g. virtual machines)
ssh_port = 22
ssh_user = 'ubuntu'
ssh_key = '~/.ssh/some_key'
