Please add a license and a screen shot

[unixorn]

I'd like to add this to awesome-zsh-plugins, but I prefer to add themes with screen shots in the readme so that users can see what they look like without having to install them.

Also, please add a license file, some people won't use any code that doesn't have an open source license. If you don't have one in mind, https://choosealicense.com is a good resource to help you select an appropriate one.

One more thing - if you put the .zsh-theme file at the top level of the repository, people using zsh frameworks won't have to do special configuration to tell their framework where the file is.

Thanks!