DOC: Add VERSION argument to docker build instructions
DOC: Add VERSION argument to docker build instructions

poldracklab/preprocessing-workflow,poldracklab/preprocessing-workflow,poldracklab/fmriprep,poldracklab/fmriprep,oesteban/fmriprep,oesteban/fmriprep,poldracklab/fmriprep,oesteban/fmriprep