DOC: Update changelog [docs only]
DOC: Update changelog [docs only]

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