This commits replaces all tabs by spaces to avoid further compilation issues.
- 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
https://docs.google.com/document/d/1QXNMvZn8pgwLKxDjEH4rIjbdPIn2rDtJHqEns6sgRLg/edit
https://docs.google.com/document/d/1XYljDvXD27s2v9w7T7yFKuMXJ79QUkKXwpLmQchYf9c/edit#