Init of plugin

This is an older plugin, so code is not totally up to date

Signed-off-by: Kristian Primdal <kprimdal@Kristians-MacBook.local>
Merge branch 'master' of github.com:kprimdal/primux-subpages

* 'master' of github.com:kprimdal/primux-subpages:
  Initial commit
init readme

Signed-off-by: Kristian Primdal <kprimdal@Kristians-MacBook.local>