message: Update docs to mention commandline args
diff: @@ -25,7 +25,7 @@ NOTE: The default shell is PowerShell; you can change this using the _Running a
  ### Command line options
  -None at this time. See issue [#607](https://github.com/microsoft/terminal/issues/607)
  +Windows Terminal has implemented a rich set of command-line options in part as response to issue [#607](https://github.com/microsoft/terminal/issues/607). See [UsingCommandlineArguments.md] (https://github.com/microsoft/terminal/blob/master/doc/user-docs/UsingCommandlineArguments.md) for details.
  ## Multiple Tabs
  