Format cible: proofreading

- add missing verb
- fix punctuation
- simplify style by removing adverb

Signed-off-by: Olivier Carrère <carrereo@gmail.com>
Acked-by: Angela Cristina <acristina@redaction-technique.org>
Format cible: insert footnotes
.
- replace text in parentheses by footnotes
- set text status as reviewed and code status as "no code"

Signed-off-by: Olivier Carrère <carrereo@gmail.com>
Acked-by: Angela Cristina <acristina@redaction-technique.org>