Document enable password in CSV file

[lathspell]

The documentation in https://exscript.readthedocs.io/en/latest/cli_tutorial.html#reading-host-names-from-a-csv-file says: The CSV file has the following format: ... telnet://myhost value another_value i.e. without mentioning that the URL syntax can include username and password as described on https://exscript.readthedocs.io/en/latest/cli_tutorial.html#reading-login-information.

Both fail to mention that the parser even understands telnet://user:loginPassword:enablePassword@host . Please document it somewhere as it's currently unclear how to provide the enablePassword when using a CSV file with several hosts.