Fix broken CONTRIBUTE.md link in README
Fix broken CONTRIBUTE.md link in README

dgodd/projectmonitor,BuildingSync/projectmonitor,genebygene/projectmonitor,remind101/projectmonitor,dgodd/projectmonitor,genebygene/projectmonitor,mabounassif/projectmonitor-docker,genebygene/projectmonitor,BuildingSync/projectmonitor,remind101/projectmonitor,mabounassif/projectmonitor-docker,BuildingSync/projectmonitor,remind101/projectmonitor,dgodd/projectmonitor,pivotal/projectmonitor,pivotal/projectmonitor,pivotal/projectmonitor,BuildingSync/projectmonitor,mabounassif/projectmonitor-docker,pivotal/projectmonitor,remind101/projectmonitor,genebygene/projectmonitor,mabounassif/projectmonitor-docker,dgodd/projectmonitor