image alignment shortcodes?

I see Sela has a page describing image alignment and styles –

https://selademo.wordpress.com/image-alignment-and-styles/

– but I cannot find any instructions on what the short codes are for any of those image alignments.

They look nice – they add space around the images so that text doesn’t butt up against the edges (but more effectively than adding Hspace and Vspace attributes).

Am I overlooking where the instructions are? I’ve looked through the readme.txt file, been to the demo site, etc.

Thank you!