DOC: Remove incorrect reference to analyze header size.
DOC: Remove incorrect reference to analyze header size.
nipy/nipy-labs,alexis-roche/nipy,alexis-roche/niseg,nipy/nireg,alexis-roche/nireg,arokem/nipy,arokem/nipy,alexis-roche/nipy,alexis-roche/register,alexis-roche/nireg,bthirion/nipy,bthirion/nipy,arokem/nipy,bthirion/nipy,nipy/nipy-labs,alexis-roche/niseg,arokem/nipy,bthirion/nipy,alexis-roche/register,alexis-roche/nipy,alexis-roche/nipy,alexis-roche/register,nipy/nireg