Usage not shown by default

[brady691213]

Your documentation suggests that my Cocona app with show usage text when started with dotnet run:

$ dotnet run
Usage: ConsoleAppSample [--name <String>]

Options:
  --name <String>    (Required)
  -h, --help         Show help message
  --version          Show version

Yet after following your Getting Started guide to the letter, for only the first two steps, invoking dotnet run does not have the expected behaviour:

PS C:\Development\SourceReporting\SourceReporting.Cocona> dotnet run
Error: Option '--name' is required. See '--help' for usage.

You have to explicitly invoke help with dotnet run -- --help.

I am using Cocona 2.2.0