fixed typos and added some error messaging
fixed typos and added some error messaging

briri/roadmap,CDLUC3/roadmap,DigitalCurationCentre/roadmap,briri/roadmap,CDLUC3/dmptool,CDLUC3/roadmap,CDLUC3/dmptool,CDLUC3/roadmap,CDLUC3/dmptool,DMPRoadmap/roadmap,DigitalCurationCentre/roadmap,CDLUC3/dmptool,DigitalCurationCentre/roadmap,briri/roadmap,DMPRoadmap/roadmap,DMPRoadmap/roadmap,CDLUC3/roadmap