small modification to documentation
small modification to documentation

JohnGriffiths/dipy,nilgoyyou/dipy,Messaoud-Boudjada/dipy,jyeatman/dipy,villalonreina/dipy,rfdougherty/dipy,rfdougherty/dipy,beni55/dipy,demianw/dipy,matthieudumont/dipy,JohnGriffiths/dipy,nilgoyyou/dipy,oesteban/dipy,StongeEtienne/dipy,beni55/dipy,sinkpoint/dipy,sinkpoint/dipy,demianw/dipy,StongeEtienne/dipy,FrancoisRheaultUS/dipy,matthieudumont/dipy,oesteban/dipy,jyeatman/dipy,FrancoisRheaultUS/dipy,Messaoud-Boudjada/dipy,villalonreina/dipy