Resources section now appends links to each subsection

Links should be added in the oer.yaml file in the site root
Updated resources mak to use dictionary type links
Added oer.yaml to `hflossk new`
Updated site.py so a directory doesn't have to exist to be a resouce section
Updated sample oer.yaml to display more options
Merge pull request #2 from liam-middlebrook/newHflossk/resourcesLinks

New hflossk/resources links