DOC: Add description of results and add problematic voxels correction in example of usage
DOC: Add description of results and add problematic voxels correction in example of usage

nilgoyyou/dipy,matthieudumont/dipy,FrancoisRheaultUS/dipy,matthieudumont/dipy,FrancoisRheaultUS/dipy,nilgoyyou/dipy,villalonreina/dipy,villalonreina/dipy