x.

$ node src/index.js -h
Options:
  --make           e.g. bmw                                  [string] [required]
  --fuel                 [string] [choices: "petrol", "gas", "diesel", "hybrid"]
  --transmission                       [string] [choices: "manual", "automatic"]
  --year-from      e.g. 2006                                            [string]
  --year-to        e.g. 2009                                            [string]
  --liters-from    e.g. 2.0                                             [string]
  --liters-to      e.g. 2.5                                             [string]
  --email-to                            [string] [default: "dagrevis@gmail.com"]
  --email-from                        [string] [default: "ss-watcher@dagrev.is"]
  --sendgrid-key                                                        [string]
  --cron-schedule                             [string] [default: "*/30 * * * *"]
  -h, --help       Show help                                           [boolean]