Update 2015-12-20-what-is-data-science.md
Update 2015-12-20-what-is-data-science.md
ElasticMining/elasticmining.github.io,LarryLo/elasticmining.github.io,LarryLo/elasticmining.github.io,ChuyuHsu/elasticmining.github.io,ElasticMining/elasticmining.github.io,ChuyuHsu/elasticmining.github.io,ChuyuHsu/elasticmining.github.io,ElasticMining/elasticmining.github.io,LarryLo/elasticmining.github.io