fixed docstrings, added doctests
fixed docstrings, added doctests

blakedewey/nipype,pearsonlab/nipype,FCP-INDI/nipype,iglpdc/nipype,blakedewey/nipype,wanderine/nipype,JohnGriffiths/nipype,dgellis90/nipype,pearsonlab/nipype,JohnGriffiths/nipype,carolFrohlich/nipype,arokem/nipype,gerddie/nipype,arokem/nipype,gerddie/nipype,arokem/nipype,carolFrohlich/nipype,JohnGriffiths/nipype,blakedewey/nipype,iglpdc/nipype,Leoniela/nipype,sgiavasis/nipype,carolFrohlich/nipype,sgiavasis/nipype,iglpdc/nipype,JohnGriffiths/nipype,carolFrohlich/nipype,dgellis90/nipype,sgiavasis/nipype,mick-d/nipype,grlee77/nipype,mick-d/nipype,gerddie/nipype,glatard/nipype,Leoniela/nipype,dgellis90/nipype,mick-d/nipype,gerddie/nipype,glatard/nipype,wanderine/nipype,glatard/nipype,grlee77/nipype,grlee77/nipype,Leoniela/nipype,mick-d/nipype,dgellis90/nipype,grlee77/nipype,wanderine/nipype,sgiavasis/nipype,blakedewey/nipype,FCP-INDI/nipype,FCP-INDI/nipype,pearsonlab/nipype,wanderine/nipype,FCP-INDI/nipype,glatard/nipype,arokem/nipype,pearsonlab/nipype,iglpdc/nipype