(property, retirement accounts) Retirement.md: equity total; contributions from Budgeting
(budget layout, presets) Retirement.md: totals, lock, savings account, per-account withdrawal, folding cards
(v2 savings) Retirement.md: stocks and bonds, varying contributions
(retire ages) Retirement.md: a retirement age for each partner
(wiki screenshots) Retirement.md: add screenshots
(wiki docs) Retirement.md: documentation page