Configure the npanday.site.url property in your settings.xml file, or add -Dnpanday.site.url=... to the commands below.
Build the project so that everything is in your local repo, or configure access to a repo that has the version you're publishing docs for.
From npanday/plugins, execute "mvn site-deploy"
From npanday/site, execute "mvn site-deploy"
It's important to do them in this order so that the generic plugins index page will get overwritten by the one in the docs for this version.
TODO: Consider renaming 'site' to 'docs'