Version argument

[funkill]

Print version of ghmd on some argument, e.g. -v, -V or --version:

$ ghmd --version
github-markdown v1.0.0

Grunt use -V and --version (but -v for verbose), bower: --version (but -V for verbose), less: -v and --version They print:

$ grunt -V
grunt-cli v0.1.13
grunt v0.4.5
$ bower --version
1.4.1
$ lessc -v
lessc 2.5.0 (Less Compiler) [JavaScript]

[funkill]

Bower also used -v for version, but i don't find it argument in help message

[1000ch]

-v or --version option will out package version.