* fixed localhost link in contributing doc.
* fixed localhost link in contributing doc.

HealthCatalystSLC/healthcareai-py,mxlei01/healthcareai-py,HealthCatalyst/healthcareai-py,jpo/healthcareai-py,jpo/healthcareai-py,HealthCatalyst/healthcareai-py,mxlei01/healthcareai-py,HealthCatalystSLC/healthcareai-py