In previous commits, some introducing comments ended just in the
line ahead of their example; others did not. For consistency,
comments are now back to back with their example.
* [awk-fr], spell check, errors spot by @vendethiel
The commit accounts for errors in orthography identified by
@vendethiel.[1]
[1] https://github.com/adambard/learnxinyminutes-docs/pull/4440
* [awk-fr] spell check, own revision
Additional spell check.