Fix T2* workflow subsection title.
Fix T2* workflow subsection title.

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