User:Spangineer/Sandbox3

I propose that portal links in mainspace headers appear directly underneath the links to sister sites.

The advantage is that we can clean up divergent systems of linking to portals, and increase usability by making our methods of linking consistent.

To cleanly accomplish this, a parameter is added to Plain sister (see User:Spangineer/Sandbox2), namely. It uses the keyword #titleparts, which allows up to three portals to be linked, each separated by a slash character.

Header is then adjusted (see User:Spangineer/Sandbox) to pass this parameter, and show the portal links in the header, if any are defined.