docs/man: refer to migration 'types' as 'modes'
docs/man: refer to migration 'types' as 'modes'

dakotahawkins/git-lfs,aleb/git-lfs,Jericho25/-git-lfs_miilkyway,Jericho25/-git-lfs_miilkyway,github/git-lfs,aleb/git-lfs,github/git-lfs,aleb/git-lfs,dakotahawkins/git-lfs,dakotahawkins/git-lfs,Jericho25/-git-lfs_miilkyway,github/git-lfs