Fixed doc of SDT
Fixed doc of SDT

I stumbled upon what seems some discrepancies with the SDT paper https://www.ncbi.nlm.nih.gov/pubmed/19188114. Anyone can pitch in to say this is not a late friday afternoon mistake?
StongeEtienne/dipy,nilgoyyou/dipy,matthieudumont/dipy,FrancoisRheaultUS/dipy,villalonreina/dipy,StongeEtienne/dipy,nilgoyyou/dipy,FrancoisRheaultUS/dipy,matthieudumont/dipy,villalonreina/dipy