README.md doesn't match the commands actually built into the programme

[John-Vaughan]

rc.exe admin service-account add <alias> myuser 
error: unrecognized subcommand 'add'

Usage: rc.exe admin service-account [OPTIONS] <COMMAND>

For more information, try '--help'.

rc.exe admin service-account --help
Manage service accounts

Usage: rc.exe admin service-account [OPTIONS] <COMMAND>

Commands:
  ls      List service accounts
  create  Create a new service account
  info    Get service account information
  rm      Remove a service account
  help    Print this message or the help of the given subcommand(s)

README.md needs to be updated to the correct commands or vice versa