fix: peak coordinate in voxels and units
fix: peak coordinate in voxels and units

cmaumet/nidm-results_fsl,jbpoline/nidm-results_fsl,incf-nidash/nidm-results_fsl,cmaumet/nidm-results_afni,incf-nidash/nidm-results_afni,incf-nidash/nidmresults-fsl,cmaumet/nidmresults-fsl