NPM repo is permalinks not assemble-contrib-permalinks / Links pointing to wrong directory

While the github repo is called "assemble-contrib-permalinks", the npm package is simply named "permalinks".  As such when yeoman generates the package.json and attempts to run npm install everything asplodes.

This single change seemed to fix that problem for me.

As well there is a commit fixing a problem in the header where links are pointing to the wrong place.