Add screenshot or example to readme

[Stephen-Gates]

I like this template but I needed to install it to discovery what it looks like. Please consider adding a screenshot or example to the readme so people can determine if it's what they're looking for without downloading it.

Examples:

• https://github.com/icearith/iA-Writer-Templates-Github-Plus
• https://github.com/cscuderi/iawriter-templates
• https://github.com/justb3a/iawriter-template-shoalcreek