Add metadata from Baxter et al study
Add metadata from Baxter et al study

SchlossLab/Westcott_OptiClust_mSphere_2017,SchlossLab/Westcott_OptiClust_mSphere_2017,SchlossLab/Westcott_OptiClust_PeerJ_2016,SchlossLab/Westcott_OptiClust_mSphere_2017,SchlossLab/Westcott_OptiClust_PeerJ_2016