Show available commands when the run command is incorrect

[MariamKhalatova]

What

When the run command is not correct, then the user should see all available commands , so he can be choose the one that he needs. This can be done by calling the --help command behind the hood, this way guiding the user.

Why

As a user I want to be guided when I do something wrong or using incorrect command.

Prerequisites/resources

Acceptance criteria

• the help command is called when the user sets incorrect run command
• Show error message (as currently is (see screenshot attached) --> " Unknown option:" ) + the result returned by calling the help command (all available commands)
• documentation updated
• changes are tested