pages*: improve list placeholders and wording of descriptions (#12111)

* pages*: improve wording and list placeholders

* clamav: fix verb tenses

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* buzzphrase: use k instead of n for number of phrases

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* adguardhome: use non-default instead of different

* adguardhome: use configuration instead of config

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* goimports, module: fix list placeholders

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* pages*: leave stems and extensions in the same placeholders

* pages*: fix list placeholders

* pages*: fix list placeholders

* pages*: apply suggestions from code review

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* qpdf: enclose n with backticks

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/aws-s3.md

@@ -10,7 +10,7 @@
 
 - Sync files and directories from local to bucket:
 
-`aws s3 sync {{path/to/files}} s3://{{bucket_name}}`
+`aws s3 sync {{path/to/file1 path/to/file2 ...}} s3://{{bucket_name}}`
 
 - Sync files and directories from bucket to local:
 
@@ -18,7 +18,7 @@
 
 - Sync files and directories with exclusions:
 
-`aws s3 sync {{path/to/files}} s3://{{bucket_name}} --exclude {{path/to/file}} --exclude {{path/to/directory}}/*`
+`aws s3 sync {{path/to/file1 path/to/file2 ...}} s3://{{bucket_name}} --exclude {{path/to/file}} --exclude {{path/to/directory}}/*`
 
 - Remove file from bucket: