doc: added reference to previous documentation
doc: added reference to previous documentation

arokem/nipype,sgiavasis/nipype,mick-d/nipype_source,FCP-INDI/nipype,dgellis90/nipype,carlohamalainen/nipype,wanderine/nipype,pearsonlab/nipype,arokem/nipype,glatard/nipype,grlee77/nipype,christianbrodbeck/nipype,dgellis90/nipype,grlee77/nipype,rameshvs/nipype,rameshvs/nipype,glatard/nipype,wanderine/nipype,carlohamalainen/nipype,grlee77/nipype,blakedewey/nipype,FCP-INDI/nipype,dgellis90/nipype,JohnGriffiths/nipype,JohnGriffiths/nipype,dgellis90/nipype,carolFrohlich/nipype,blakedewey/nipype,iglpdc/nipype,mick-d/nipype,FCP-INDI/nipype,mick-d/nipype,carolFrohlich/nipype,dmordom/nipype,mick-d/nipype,carlohamalainen/nipype,dmordom/nipype,carolFrohlich/nipype,glatard/nipype,JohnGriffiths/nipype,fprados/nipype,FredLoney/nipype,mick-d/nipype_source,pearsonlab/nipype,sgiavasis/nipype,arokem/nipype,blakedewey/nipype,christianbrodbeck/nipype,arokem/nipype,gerddie/nipype,gerddie/nipype,dmordom/nipype,fprados/nipype,mick-d/nipype_source,JohnGriffiths/nipype,FredLoney/nipype,FCP-INDI/nipype,Leoniela/nipype,rameshvs/nipype,wanderine/nipype,Leoniela/nipype,iglpdc/nipype,carolFrohlich/nipype,fprados/nipype,gerddie/nipype,pearsonlab/nipype,blakedewey/nipype,FredLoney/nipype,mick-d/nipype,sgiavasis/nipype,grlee77/nipype,wanderine/nipype,glatard/nipype,Leoniela/nipype,iglpdc/nipype,gerddie/nipype,rameshvs/nipype,sgiavasis/nipype,iglpdc/nipype,pearsonlab/nipype