Demo pagination in the on the demo site

[Jens Rantil]

Describe the enhancement

@simonhollingshead mentioned in #837 (comment) that the demo site doesn't actually demo pagination. I think it should demo that feature for two reasons:

• It's a feature that I think people considering this theme should know about - that the blog post listings don't become infinite.
• It's useful when debugging bugs around pagination (such as #837).

[Luiz F. A. de Prá]

Done, right?

[Jens Rantil]

Done, right?

Correct.