Add cmd option to command alternative of standalone creation to reflect better the "alternative" part of the GUI version given its option msg "Standalone qube copied from a template".
- Add and update links
- Update terminology
- Fix and improve syntax
- Clarify command-line variables
- Fix headings
- Improve language
- Make syntax consistent
- Remove deprecated and inaccurate information
- Improve grammar and orthography
- Fix typos
- Wrap text
Related to #1164