3 A simple to use, efficient, and full-featured Command Line Argument Parser
5 Usage: demo[EXE] [OPTIONS] --name <NAME>
8 -n, --name <NAME> Name of the person to greet
9 -c, --count <COUNT> Number of times to greet [default: 1]
11 -V, --version Print version
17 *(version number and `.exe` extension on windows replaced by placeholders)*