wish: complete HTML example

[markstos]

When trying the "css()" formatter, some HTML is dumped to STDOUT. It includes some classes that are declared, but there's not CSS shipped with it to style it.

It would speed up the flow of getting started with HTML/CSS output if a complete example was included or linked from the main documentation.

I'm finding unfunk-diff helpful. Thanks for sharing it!

[Bartvds]

Glad you found it useful, and thanks for the input(s).

The styling used is ministyle so there are a few different outputs. But I also updated the readme on CSS styler with some snippets: https://github.com/Bartvds/ministyle/blob/master/README.md#css