- Removed the numbering from headings because it was either inconsistent, breaking the implicit hyperlink target or useless. - Fixed incorrect heading formattings. - Replaced hand-written flows by the :menuselection: directive
- Several content blocks were either misaligned, using the wrong display directive or not showing at all. - Some images were missings. - Typos
Remove outdated references to 12.0 Closes odoo/documentation-user#413
